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is a significant concern for physicians. Central& F! G, C8 ~! I3 S P& \
precocious puberty (CPP), which is mediated
& X7 C T% ~8 G7 I* Lthrough the hypothalamic pituitary gonadal axis, has
% k8 v7 a& R! ]8 g$ ^a higher incidence of organic central nervous system
- r# E3 g/ W2 A9 b9 X4 \lesions in boys.1,2 Virilization in boys, as manifested8 {* K" V/ q4 n3 U4 E' D
by enlargement of the penis, development of pubic5 T9 x9 S' c5 h6 R3 g& i1 L+ f% T
hair, and facial acne without enlargement of testi-; E2 L: {& o6 Q; Y8 W9 o
cles, suggests peripheral or pseudopuberty.1-3 We; d5 e* M% q z
report a 16-month-old boy who presented with the+ F( t0 |1 c+ A9 M
enlargement of the phallus and pubic hair develop-% c3 e. V0 k: _) X
ment without testicular enlargement, which was due
0 o# H g% {# o* c1 U1 c2 b* ^3 ?to the unintentional exposure to androgen gel used by' O" S. r% `, T. w9 Y+ t
the father. The family initially concealed this infor-# g2 Y$ B K' @* O' M2 X/ y
mation, resulting in an extensive work-up for this' v9 j, D4 i$ F6 a- j
child. Given the widespread and easy availability of
3 v; m5 h8 i* s, _- Jtestosterone gel and cream, we believe this is proba-
3 N+ ^* K; f9 {( ]% y1 x9 b( fbly more common than the rare case report in the
. z1 }+ n* `7 }7 \literature.4
, @8 _- n1 ?0 J2 BPatient Report
6 ~8 A9 ]& B! YA 16-month-old white child was referred to the
- M# |. q h+ }( T! tendocrine clinic by his pediatrician with the concern/ g( \# T8 Z& p; ? o
of early sexual development. His mother noticed
7 L; P! h1 y! Q% _light colored pubic hair development when he was2 p# A$ g8 {, p$ a
From the 1Division of Pediatric Endocrinology, 2University of
B6 j, q* f2 l- }South Alabama Medical Center, Mobile, Alabama.0 v. E) s2 y' z! W+ {9 X" P2 \
Address correspondence to: Samar K. Bhowmick, MD, FACE,3 d5 s4 M3 ?+ d3 j
Professor of Pediatrics, University of South Alabama, College of
' v- l( |& o/ u- y. `/ XMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;6 d6 @6 w/ B n Q6 j% r4 b3 n
e-mail: [email protected].' R: o2 W8 `, F1 l/ d. d
about 6 to 7 months old, which progressively became/ d2 K* _: B6 P* b' q
darker. She was also concerned about the enlarge-7 F; S8 u- K# l; ^* w. s" B
ment of his penis and frequent erections. The child
" C3 C: y# y& N; H& w' w! t& twas the product of a full-term normal delivery, with
* @! o% z U. o5 ua birth weight of 7 lb 14 oz, and birth length of
1 _! F1 [' Y! D8 D: E20 inches. He was breast-fed throughout the first year
# U! y% U' z0 G6 v# rof life and was still receiving breast milk along with
3 @6 f) ?$ _. u+ k- b4 L8 S: Jsolid food. He had no hospitalizations or surgery,7 A# f8 O8 d$ c6 F, O+ L% }4 E, a
and his psychosocial and psychomotor development' s" e# `* s3 m9 F
was age appropriate.' `" E* ~2 [: @ w; ^
The family history was remarkable for the father,* x5 E% a7 Q/ ]4 Q, _- I& v
who was diagnosed with hypothyroidism at age 16,
! M7 w9 c, u3 Z+ fwhich was treated with thyroxine. The father’s Z2 V f% _( l |$ |5 W
height was 6 feet, and he went through a somewhat7 F1 M/ M3 M. y
early puberty and had stopped growing by age 14.) G$ v* R) j+ V
The father denied taking any other medication. The
8 ~; H/ `) d2 Qchild’s mother was in good health. Her menarche7 j$ X+ N! h% `6 e9 @
was at 11 years of age, and her height was at 5 feet
2 P0 U* @0 N3 @3 h, i& n& x# v5 inches. There was no other family history of pre-
1 l8 |% O; P5 g+ ^4 ^9 {) A1 ccocious sexual development in the first-degree rela-! K$ u o" b' g) ?) w
tives. There were no siblings.
% q7 M7 r$ e2 Q5 n/ r* U& E8 q7 TPhysical Examination5 R5 @4 Z7 w4 P2 s( T
The physical examination revealed a very active,3 w" N: ~( S& a* c+ `
playful, and healthy boy. The vital signs documented
6 @: E; P# [7 E9 {. Ka blood pressure of 85/50 mm Hg, his length was
/ c; A( V! ~; k2 ~7 R* _4 z. C90 cm (>97th percentile), and his weight was 14.4 kg
4 B$ F7 ~7 y' D) P4 e9 g1 S4 w( _(also >97th percentile). The observed yearly growth
+ U. `; ^4 P! D( D! O1 kvelocity was 30 cm (12 inches). The examination of# c; Z! Q* ]" N$ T5 O- b- {
the neck revealed no thyroid enlargement.
) M3 Y: \4 ?0 K: QThe genitourinary examination was remarkable for9 n% w. v1 V: h3 X* i
enlargement of the penis, with a stretched length of
. C( M" c5 D- }1 T8 {# M8 cm and a width of 2 cm. The glans penis was very well
, W* ]; [6 V ]developed. The pubic hair was Tanner II, mostly around
5 j l& q! O& `5 Y1 ]& F540- M8 T/ }6 J. L! s; p
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
, Q6 u% U6 o6 ]: wthe base of the phallus and was dark and curled. The
, V1 p, b% c6 v0 _: {testicular volume was prepubertal at 2 mL each.5 K+ @6 l8 X1 j& l& d+ e
The skin was moist and smooth and somewhat
) |* z9 ]5 t: E$ n X Z2 \0 Aoily. No axillary hair was noted. There were no
& R+ Z7 b) |+ G& }7 D5 }* mabnormal skin pigmentations or café-au-lait spots.' `# ]: F" h) b [. Q3 Y
Neurologic evaluation showed deep tendon reflex 2+& _: U% [! X M, j" g
bilateral and symmetrical. There was no suggestion
! U f6 v. L+ b Fof papilledema.# u4 m. U: C4 s$ H
Laboratory Evaluation, ~& f9 k. }# b
The bone age was consistent with 28 months by T! _. W" K1 h0 t% p h
using the standard of Greulich and Pyle at a chrono-+ c/ |) ]+ N5 v1 ]& ?3 c1 i* E
logic age of 16 months (advanced).5 Chromosomal& w! ]: J$ l: u) q& T
karyotype was 46XY. The thyroid function test
7 T. U* A% B) y) T4 Jshowed a free T4 of 1.69 ng/dL, and thyroid stimu-
" {$ [! Y: q% q/ Hlating hormone level was 1.3 µIU/mL (both normal).
# M5 N- U f% U8 ~ sThe concentrations of serum electrolytes, blood- _- l4 a" h2 O/ D4 h" |
urea nitrogen, creatinine, and calcium all were
9 B# ]6 C; \. L# x0 Y4 Vwithin normal range for his age. The concentration
- \ G: x2 h5 W; Z& `( R aof serum 17-hydroxyprogesterone was 16 ng/dL1 x) U* R6 ?: v
(normal, 3 to 90 ng/dL), androstenedione was 20 z) Q7 u- F! @( ^6 Z
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
3 k! n$ z7 x0 e" tterone was 38 ng/dL (normal, 50 to 760 ng/dL),9 u, u2 H" \" s: ]1 J$ P
desoxycorticosterone was 4.3 ng/dL (normal, 7 to
- d; \4 E- L- [ Z! c' l. ^49ng/dL), 11-desoxycortisol (specific compound S)9 u$ X$ z. W% s2 W, k. x
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
; `2 V/ {) @9 itisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total! y- ~8 R% b0 K' P2 Y) k# \+ {7 w
testosterone was 60 ng/dL (normal <3 to 10 ng/dL),
; t; A9 T2 M1 `, x% u, @- eand β-human chorionic gonadotropin was less than
" f9 x; b0 d! T! T# f5 mIU/mL (normal <5 mIU/mL). Serum follicular9 S+ e$ Z1 o. i6 t6 E
stimulating hormone and leuteinizing hormone( L- e* B4 J, z. X" S
concentrations were less than 0.05 mIU/mL8 y4 e* _9 T: i9 E. J
(prepubertal).
2 K5 R2 w6 y& q- k% _The parents were notified about the laboratory
/ n1 M, m/ x- z- X" xresults and were informed that all of the tests were
9 l/ r. J) A( I; _$ Z; {1 n) f4 @normal except the testosterone level was high. The) J1 b+ @7 y/ ~$ d4 _/ {
follow-up visit was arranged within a few weeks to
: x8 v6 s4 Z* J/ _% m7 G1 gobtain testicular and abdominal sonograms; how-
' n2 k6 i: Y! j4 g9 z8 Kever, the family did not return for 4 months.
S) {3 W. H( I4 ?+ CPhysical examination at this time revealed that the/ ^) P7 W& S# |3 j2 G) R; N
child had grown 2.5 cm in 4 months and had gained( Z `' d: K" l5 V) s8 k. Y
2 kg of weight. Physical examination remained* l: Z; N) Y/ o. _3 m
unchanged. Surprisingly, the pubic hair almost com-( P7 g3 B' }* a4 z6 f
pletely disappeared except for a few vellous hairs at' y! V5 P8 Q' T6 b: b
the base of the phallus. Testicular volume was still 2" a( E. Y/ _6 X1 o2 {1 ~# j
mL, and the size of the penis remained unchanged.9 j/ z6 s! P9 h" F" |
The mother also said that the boy was no longer hav-& Y/ \7 M. z$ Y
ing frequent erections.( D9 Y5 y& t# k* S
Both parents were again questioned about use of
; B; n2 P s1 [! X0 t' }! vany ointment/creams that they may have applied to; [- n1 } [7 v1 A$ ]
the child’s skin. This time the father admitted the% B: I2 M2 G0 L
Topical Testosterone Exposure / Bhowmick et al 541/ X; ?, k f: o& k1 ]$ d
use of testosterone gel twice daily that he was apply-1 w+ l( R6 G9 Y- w& J! D2 ]7 E2 _
ing over his own shoulders, chest, and back area for, C1 q* m; m- o& H* [
a year. The father also revealed he was embarrassed% F9 }# A' P/ s' b
to disclose that he was using a testosterone gel pre-
4 N5 w! V# g. F) Cscribed by his family physician for decreased libido
+ O( t9 S" }- B4 S; E) }secondary to depression.
# ]& v, ~3 F9 A% j' WThe child slept in the same bed with parents.7 p- E1 R! R; b$ W
The father would hug the baby and hold him on his6 _2 x" e; z* N
chest for a considerable period of time, causing sig-
" h% X; B# l9 f% `/ ^: D+ Tnificant bare skin contact between baby and father.
( n. e9 B: Z Z( X4 @The father also admitted that after the phone call,) S6 [! u9 x; J
when he learned the testosterone level in the baby2 @8 j2 z8 C) N4 b
was high, he then read the product information8 e% a5 [% J0 \6 ?% |6 R3 L3 p
packet and concluded that it was most likely the rea-: L4 [* l. X' c
son for the child’s virilization. At that time, they3 {: }+ m0 g6 v; H# b: W
decided to put the baby in a separate bed, and the
5 z8 F9 ~7 R7 E$ v; Q; Tfather was not hugging him with bare skin and had% S5 D. Z& t6 j( D
been using protective clothing. A repeat testosterone+ H" g* K: q* D; t, }" F8 f
test was ordered, but the family did not go to the( e: e" g4 f! E: h
laboratory to obtain the test.
( J& }# e' k( aDiscussion
2 Y( v% K) _# m* lPrecocious puberty in boys is defined as secondary
9 g- w/ e8 o3 q1 c- Xsexual development before 9 years of age.1,4) m, T6 A* g- n3 ?$ m1 K# b
Precocious puberty is termed as central (true) when0 k- ^4 `' ]! I
it is caused by the premature activation of hypo-
# i/ ~# q( n, A8 E2 v. j7 V) A/ {thalamic pituitary gonadal axis. CPP is more com-$ K7 P1 H# d$ D/ R h) C2 ^/ ]
mon in girls than in boys.1,3 Most boys with CPP
# c- D7 g4 Q4 Amay have a central nervous system lesion that is% ~9 |( D4 y% g3 k
responsible for the early activation of the hypothal-" B. c& u# g% }1 l7 O' w
amic pituitary gonadal axis.1-3 Thus, greater empha-5 z6 B9 I6 a! C+ l" x! l( u( x; P
sis has been given to neuroradiologic imaging in
- l8 w, o! e) Rboys with precocious puberty. In addition to viril-* q2 o5 K( Q1 }4 e$ Z, d5 x( i
ization, the clinical hallmark of CPP is the symmet-. s6 |5 E. E$ v7 ~2 |% K2 C' S, O
rical testicular growth secondary to stimulation by
+ q0 I1 v; l% N2 ygonadotropins.1,3; `) z9 M2 E) ?& P+ q! W
Gonadotropin-independent peripheral preco-9 m/ E9 }: R# K" M- S. b
cious puberty in boys also results from inappropriate4 ^2 ^3 g; p/ f4 o. ~8 i! j
androgenic stimulation from either endogenous or* T8 _/ T3 a0 I, K! I& G3 O
exogenous sources, nonpituitary gonadotropin stim-
+ H8 O& Q$ Z1 s0 }4 X; B- Oulation, and rare activating mutations.3 Virilizing
6 c9 B$ t& ]* M# f+ h0 M: k4 Icongenital adrenal hyperplasia producing excessive6 R- C7 \, i9 c3 R9 I6 u
adrenal androgens is a common cause of precocious
4 X# u8 v3 S4 o2 T+ Rpuberty in boys.3,40 _& r/ D Y3 _/ ^
The most common form of congenital adrenal! d2 Z2 m- a9 o1 ]
hyperplasia is the 21-hydroxylase enzyme deficiency." ^7 V' X6 S! |! f& P! o8 Y/ p
The 11-β hydroxylase deficiency may also result in+ h0 P! H9 p7 B9 X
excessive adrenal androgen production, and rarely,
. j$ ?, g! t% _ K D, x8 Wan adrenal tumor may also cause adrenal androgen
$ V n3 z' |5 V2 X! @& D3 _4 Oexcess.1,3
! X9 l: Z+ k' r! G* k) @at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
* C2 Z0 q% N6 | s542 Clinical Pediatrics / Vol. 46, No. 6, July 2007
( l6 f n+ A) y7 T8 CA unique entity of male-limited gonadotropin-
: ^. P; u8 ~6 T5 |! @independent precocious puberty, which is also known4 u. A" ]3 d. f; o6 O
as testotoxicosis, may cause precocious puberty at a/ \- _! r" O( g: D
very young age. The physical findings in these boys' O: V. i4 F; s6 M/ E
with this disorder are full pubertal development,
* \! o5 s# h7 t$ P* Wincluding bilateral testicular growth, similar to boys5 K% E/ W* \1 a9 q4 p$ v
with CPP. The gonadotropin levels in this disorder( P1 G- B& l' t9 C1 H- N5 D$ I! Z$ z2 ~) t
are suppressed to prepubertal levels and do not show( U# a2 H9 q- w7 f2 \) Z. k9 y
pubertal response of gonadotropin after gonadotropin-
: K$ y% z. I" areleasing hormone stimulation. This is a sex-linked5 i7 y5 T4 ]4 Q8 j! {2 o/ e5 V. g9 [
autosomal dominant disorder that affects only
+ S# _4 w0 @( [0 \males; therefore, other male members of the family' L7 m6 Q4 m4 { t
may have similar precocious puberty.3
, p6 K/ @2 M. FIn our patient, physical examination was incon-& M% Z' L+ o% J9 t" G
sistent with true precocious puberty since his testi-3 V5 F' A @9 P* i+ C4 I
cles were prepubertal in size. However, testotoxicosis- s2 z2 u! b, Q) f. v% n- b
was in the differential diagnosis because his father. j: d1 @& l, j+ p( F
started puberty somewhat early, and occasionally,
* Y7 K: \. k( O8 Y6 Vtesticular enlargement is not that evident in the( M% n9 I/ _; r& n
beginning of this process.1 In the absence of a neg-7 g% u& t7 o$ z0 X* S
ative initial history of androgen exposure, our
- ~7 q" v6 V; F$ ]) s* v2 ^* [5 Abiggest concern was virilizing adrenal hyperplasia,
/ x$ o: \/ A! Seither 21-hydroxylase deficiency or 11-β hydroxylase: V5 S7 D5 m2 }$ [
deficiency. Those diagnoses were excluded by find-: |' W* H, o/ I- [$ _0 S0 n/ C
ing the normal level of adrenal steroids.2 C) T6 C( `8 G7 g9 |8 B
The diagnosis of exogenous androgens was strongly7 B+ i) N- z# g5 ~# u' j" C4 A
suspected in a follow-up visit after 4 months because( H' x# M" ^* a! v; A0 f7 T
the physical examination revealed the complete disap-
7 H( n7 i) a2 g9 i5 d( qpearance of pubic hair, normal growth velocity, and: y1 U: X% e# p& O) I
decreased erections. The father admitted using a testos-( e8 \: t' H7 u: H
terone gel, which he concealed at first visit. He was
9 b7 [" J* g1 Y5 busing it rather frequently, twice a day. The Physicians’
) m Y/ \% Y4 r# cDesk Reference, or package insert of this product, gel or. T6 }! P: ^4 l9 W( P
cream, cautions about dermal testosterone transfer to6 N7 @" b" m. ]1 Q
unprotected females through direct skin exposure.
O, l% j& ^; e8 D+ d- v4 U% [* zSerum testosterone level was found to be 2 times the0 R7 c- y5 E1 j) ~% h
baseline value in those females who were exposed to `# z# r$ L$ ?
even 15 minutes of direct skin contact with their male
" }' \ O$ P/ z9 f$ d; v! s8 ?partners.6 However, when a shirt covered the applica-3 ~: L9 Z/ a6 N5 n/ |! @
tion site, this testosterone transfer was prevented.5 p3 ~" P% o! Z! [
Our patient’s testosterone level was 60 ng/mL,
; b5 Y6 Z( r% f5 h+ Uwhich was clearly high. Some studies suggest that
+ `) Q* v! f. Ldermal conversion of testosterone to dihydrotestos-
5 H1 x) j B3 nterone, which is a more potent metabolite, is more
, ~0 ]" D0 x& O9 Dactive in young children exposed to testosterone+ a0 r1 S7 L }5 g
exogenously7; however, we did not measure a dihy-& s9 o/ \. A* ]5 m( |
drotestosterone level in our patient. In addition to
/ J9 {$ v( |/ @& ]virilization, exposure to exogenous testosterone in
- h1 b3 e2 J4 T1 E; qchildren results in an increase in growth velocity and
$ A% F, X" c' j4 e' b2 fadvanced bone age, as seen in our patient.
9 C F" i& N2 t' ZThe long-term effect of androgen exposure during
3 k9 |/ F6 n# ]early childhood on pubertal development and final1 g4 [* s8 N9 S! G& H* S
adult height are not fully known and always remain/ g3 z9 \5 X- F9 y
a concern. Children treated with short-term testos-6 _1 c, t: q x
terone injection or topical androgen may exhibit some
: ?$ O. E; e. ]: {& `1 B l+ ~) Nacceleration of the skeletal maturation; however, after( Y) O9 H0 r3 K" I7 F( Q
cessation of treatment, the rate of bone maturation) {! D! F6 ~8 u% W; S; ?: [1 D
decelerates and gradually returns to normal.8,9( u0 b9 i7 U) X: @ K" r
There are conflicting reports and controversy
5 [6 b& p2 i# ?; Dover the effect of early androgen exposure on adult7 u; Y$ M1 ~/ `9 E. Y; i
penile length.10,11 Some reports suggest subnormal
! j$ H6 X8 j1 |. W5 ?1 Iadult penile length, apparently because of downreg-$ R1 F/ r1 W. P7 t
ulation of androgen receptor number.10,12 However,
; m4 Y: l- p- BSutherland et al13 did not find a correlation between" `/ Y/ M. Z$ J3 b' B# z# i; V# R$ R
childhood testosterone exposure and reduced adult
4 F2 ~' m! R* ^& A9 \( d+ H, Zpenile length in clinical studies.
% C' _8 z! m2 C! v% MNonetheless, we do not believe our patient is
5 `6 u. w$ @4 A( S; K' [* _going to experience any of the untoward effects from
; h1 b3 y1 P: h! m: ttestosterone exposure as mentioned earlier because- N$ x+ G3 q: d/ V& n
the exposure was not for a prolonged period of time.8 p# W6 Y' j/ B8 P
Although the bone age was advanced at the time of1 D8 T/ Q3 M% L" B. I4 r( a
diagnosis, the child had a normal growth velocity at; C/ H# i8 X1 T0 C% d/ G
the follow-up visit. It is hoped that his final adult8 Z! \( Q2 T0 X; p* x# z: E
height will not be affected.
4 X6 ?5 H6 r+ B& B; c- M' l4 yAlthough rarely reported, the widespread avail-7 w# a) g3 l; N! I' f7 U
ability of androgen products in our society may" t; {+ w5 z" { s- p8 g3 w4 o$ v
indeed cause more virilization in male or female' Z% K* t' i: V( p0 {
children than one would realize. Exposure to andro-
( @5 \* ]0 |7 G) N) V1 K9 mgen products must be considered and specific ques-4 z. B7 u3 d% K! D% D
tioning about the use of a testosterone product or; e9 _/ i1 U% v+ p1 S) ]
gel should be asked of the family members during
& E2 P5 O: {) z/ t: L1 {( uthe evaluation of any children who present with vir-* L8 E n" F2 R4 m5 F3 w
ilization or peripheral precocious puberty. The diag-
% ]+ l: ?- d7 x: C9 m0 n: z9 Vnosis can be established by just a few tests and by" }! J0 [. I! T2 I, U0 Z6 z5 K
appropriate history. The inability to obtain such a' H; {' P( h( N; N( m) H
history, or failure to ask the specific questions, may) y2 E! f, E: N- _' @
result in extensive, unnecessary, and expensive( K! l8 A- h5 C; R
investigation. The primary care physician should be9 W* |1 x" O/ E, `) g5 _; M
aware of this fact, because most of these children
- `: d! n# n5 j( r: `# A: Ymay initially present in their practice. The Physicians’6 Q; @. t* B; v; T1 Y
Desk Reference and package insert should also put a
- c# v4 R7 s. M% `% Jwarning about the virilizing effect on a male or
3 G% J9 L! `+ K6 [" t' Z( H( B9 j& efemale child who might come in contact with some-
: T5 l9 n, `/ f9 h9 i. Eone using any of these products.
x& _" \4 S5 f7 MReferences
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7 c- ?* m/ p0 I2 o# k; B% cand puberty in the male. In: Sperling MA, ed. Pediatric n0 r: d8 E# F9 x, H2 F/ m* c" G$ }
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
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2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious( y% q- a5 |/ |: A$ N) C2 Y
puberty in children with tumours of the suprasellar pineal
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Topical Testosterone Exposure / Bhowmick et al 543
# F2 X, i# v& M& d& r6 d% c7 x1 [8 Oareas: organic central precocious puberty. Acta Paediatr.) r) x8 u1 I7 z* p
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exposure to testosterone. Pediatrics. 1999;104:e23.- w& O4 | g/ B: _* \$ w% D
5. Greulich WW, Pyle SI, eds. Radiographic Atlas of
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1 s! j( s* Q5 D- p/ W, n: J3 D& A6. Physicians’ Desk Reference. Androgel 1% testosterone,+ F# H3 v }, I
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! t5 x, r. ?/ `. g; YEconomics Company, Inc; 2004:3239-3241.. o& X' o7 x! m+ h) x2 h
7. Klugo RC, Cerny JC. Response of micropenis to topical# J. U5 z& k- U4 y1 x. t. V8 Q- X" S
testosterone and gonadotropin. J Urol. 1978;119:, t; R0 t7 ` E! G8 P0 v
667-668.
2 Y# \! i, w" v% A; W8. Guthrie RD, Smith DW, Graham CB. Testosterone& n7 U+ H- F" f& f6 a3 }
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