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is a significant concern for physicians. Central
+ O" U1 r8 |# |8 m7 e4 M' P$ }precocious puberty (CPP), which is mediated/ L$ f1 I% t1 R, L C% E/ Q
through the hypothalamic pituitary gonadal axis, has8 B9 ?5 t' o d5 ?
a higher incidence of organic central nervous system
# ?$ v k% B& z8 c# W" i8 E! B; E% ulesions in boys.1,2 Virilization in boys, as manifested
) [; N- N2 m# J! E0 R+ lby enlargement of the penis, development of pubic) _* K& z" J4 x p
hair, and facial acne without enlargement of testi-# i( S* W1 B. X5 {/ t5 |0 b
cles, suggests peripheral or pseudopuberty.1-3 We% F5 a1 a0 T/ M) f& p+ K1 A# o
report a 16-month-old boy who presented with the
( R9 O7 f- v0 v0 Jenlargement of the phallus and pubic hair develop-" E2 W C$ h9 k4 S
ment without testicular enlargement, which was due
. z9 e& b* f9 P2 g4 j/ |to the unintentional exposure to androgen gel used by
/ Y& w2 l j$ T$ _1 M4 d6 Ythe father. The family initially concealed this infor-
1 q6 r: c' a+ Jmation, resulting in an extensive work-up for this& P1 [! }+ X. |
child. Given the widespread and easy availability of
0 P$ l, p3 F) H0 }8 H) atestosterone gel and cream, we believe this is proba-
+ I3 u# v, e( C) P6 Nbly more common than the rare case report in the
) ]6 R; z4 x* {1 S6 e- `7 yliterature.4) q+ y) M5 M, c7 e3 C5 p
Patient Report
8 C( e; f0 R/ K( D4 k2 U( `A 16-month-old white child was referred to the
: E* z7 i2 r$ iendocrine clinic by his pediatrician with the concern" ^0 ?! y! i2 p; g1 i: i
of early sexual development. His mother noticed
8 d. j4 a5 v: Alight colored pubic hair development when he was! W& K ]3 i7 u- G. m
From the 1Division of Pediatric Endocrinology, 2University of
8 ~9 X9 B$ v& A! S2 k1 J) ISouth Alabama Medical Center, Mobile, Alabama.3 R5 r: i& U* O0 W, E2 o
Address correspondence to: Samar K. Bhowmick, MD, FACE,
h! E) e2 T0 n0 S- iProfessor of Pediatrics, University of South Alabama, College of
& j# b( l7 Z8 ^6 Q$ D+ mMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;
% I d" ]! p! \: G+ he-mail: [email protected].! F: g: N9 q& X2 {9 @
about 6 to 7 months old, which progressively became
% F) F- A8 I! Q) j: Qdarker. She was also concerned about the enlarge-- Y9 x* \4 w4 G- I
ment of his penis and frequent erections. The child: g+ d9 i3 {/ }/ {; j1 s8 D3 n
was the product of a full-term normal delivery, with
8 h) T! n" c5 `3 W! F0 Ga birth weight of 7 lb 14 oz, and birth length of1 b) v+ h: f' W. B& Y/ M' n
20 inches. He was breast-fed throughout the first year3 B9 S3 F7 y9 v
of life and was still receiving breast milk along with# ]7 `+ S+ t- z2 H4 B
solid food. He had no hospitalizations or surgery,5 s {* V$ }5 b
and his psychosocial and psychomotor development
" S6 S. G) K" z4 twas age appropriate.
0 {7 ?8 h7 z4 o+ B: ~The family history was remarkable for the father,
: E3 O: h- D2 s5 Q3 |who was diagnosed with hypothyroidism at age 16,, t# Y, x& H+ H- j
which was treated with thyroxine. The father’s5 p( a1 G, m" @3 L/ Y q+ A0 z; x/ V% A! {
height was 6 feet, and he went through a somewhat! q/ H0 F# B7 L1 q0 O, Q; ]' V
early puberty and had stopped growing by age 14.8 P5 t0 `0 z* \
The father denied taking any other medication. The
! u" t6 O8 i) W7 A# M; Tchild’s mother was in good health. Her menarche
( x5 A7 ^$ q/ M% pwas at 11 years of age, and her height was at 5 feet
* F6 b9 f) u7 r5 inches. There was no other family history of pre-
1 l$ ?9 M$ U0 ^0 l% Icocious sexual development in the first-degree rela-
, X/ S( A2 m/ b# v5 M& s( S5 btives. There were no siblings., l, Q8 i* e# t( ?
Physical Examination m6 @4 H9 u, C# I M
The physical examination revealed a very active,* H# O! F% W$ i/ X7 u5 a
playful, and healthy boy. The vital signs documented# y& P& P3 v; Y+ N1 ]: k
a blood pressure of 85/50 mm Hg, his length was
`3 o% Y1 F3 t; x( Y6 K& A3 Y90 cm (>97th percentile), and his weight was 14.4 kg
# o9 j1 T; a6 D5 A" g(also >97th percentile). The observed yearly growth' |( w& h. P7 B8 }1 m# b' p5 d7 ]
velocity was 30 cm (12 inches). The examination of
& r& |5 ^0 T/ { Wthe neck revealed no thyroid enlargement.8 B# a7 Y5 Y$ W$ K ~' D
The genitourinary examination was remarkable for
' n9 ^* Y" Q, V' L1 R* K/ a0 U2 Benlargement of the penis, with a stretched length of
7 C J- u6 Z0 ~: R+ R# j9 g8 cm and a width of 2 cm. The glans penis was very well) ?8 `, ~9 h! t2 ]+ j+ n
developed. The pubic hair was Tanner II, mostly around
$ J) Q- s! S# G7 D5407 C5 _& R% M! ^$ ^5 O
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
& e3 |) ~4 y! P0 gthe base of the phallus and was dark and curled. The
1 e, f0 j* m2 X9 S1 ^testicular volume was prepubertal at 2 mL each.% P z" E% S/ q
The skin was moist and smooth and somewhat0 r7 G& ~: \ z; L2 j( L: L8 g: v
oily. No axillary hair was noted. There were no/ F% F* ?+ i" l& T& v; `# h
abnormal skin pigmentations or café-au-lait spots.- Q& F, V' N3 C
Neurologic evaluation showed deep tendon reflex 2+; Q+ M4 }8 s) S8 i5 |
bilateral and symmetrical. There was no suggestion) ^1 l4 O7 D% z9 k( I
of papilledema.. `$ Y: J7 s2 y* N5 F
Laboratory Evaluation
- r2 X( y& Q; v7 S* s0 HThe bone age was consistent with 28 months by, Y5 |; |4 J- k$ h1 b( T- _
using the standard of Greulich and Pyle at a chrono-
' i7 V. v2 i. R/ wlogic age of 16 months (advanced).5 Chromosomal: y4 r8 {$ C/ Q0 k5 J
karyotype was 46XY. The thyroid function test/ P4 a5 @& K( _7 t2 k# _
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
& v8 t! N* w( ~7 z8 ylating hormone level was 1.3 µIU/mL (both normal).! z- y( X' U( n' R8 `& ?' h
The concentrations of serum electrolytes, blood8 n( B1 c! W2 F7 ~
urea nitrogen, creatinine, and calcium all were
: T+ [- F( T" cwithin normal range for his age. The concentration
5 P+ c' |! D- r# r5 y# kof serum 17-hydroxyprogesterone was 16 ng/dL" Z# Q7 c1 ~" Y% ~
(normal, 3 to 90 ng/dL), androstenedione was 20
$ g7 l5 ?" v- s: jng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-
$ V. T+ J, o3 b6 \: ?. sterone was 38 ng/dL (normal, 50 to 760 ng/dL),
! E9 j2 o5 ]( k% d7 T- B: adesoxycorticosterone was 4.3 ng/dL (normal, 7 to: s7 C7 W7 N( r- R" a: G! o$ p
49ng/dL), 11-desoxycortisol (specific compound S). F1 f7 [1 L4 W0 `7 z; Y
was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
3 o9 \4 N: D- X% ^, M6 A9 ttisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
' |( }# s* E% c( y3 K1 I' | Ltestosterone was 60 ng/dL (normal <3 to 10 ng/dL), m$ }' X+ P$ q( X) O/ D
and β-human chorionic gonadotropin was less than
7 r B1 x+ y- ~6 r* ]" n& L5 mIU/mL (normal <5 mIU/mL). Serum follicular
4 g# @( ?1 b w# Gstimulating hormone and leuteinizing hormone
. d! R9 Y2 P3 wconcentrations were less than 0.05 mIU/mL
d) d0 L( O z. b- ]. q/ j( O# \(prepubertal).
, r" S1 V2 Y$ J# D( D& p. c: FThe parents were notified about the laboratory, i# }$ N" g1 Q2 P! Q2 t
results and were informed that all of the tests were
" r2 c% w* J0 j) Z$ _2 Wnormal except the testosterone level was high. The o+ h" a3 i- J' m' f
follow-up visit was arranged within a few weeks to0 A( q2 b! G* I' ^5 c
obtain testicular and abdominal sonograms; how-9 a. b3 r/ S, P k
ever, the family did not return for 4 months.
; P/ m* M+ q/ F1 O! sPhysical examination at this time revealed that the2 G" w7 h% B9 ? i! k" B# v
child had grown 2.5 cm in 4 months and had gained1 @3 g* I: Q9 {2 l
2 kg of weight. Physical examination remained8 T- a' e& B1 [5 x. `* D+ i
unchanged. Surprisingly, the pubic hair almost com-1 N: \+ f7 ]! C1 i$ u3 h `
pletely disappeared except for a few vellous hairs at
+ h& z7 z# r! r& pthe base of the phallus. Testicular volume was still 2
/ e% J5 G: N! FmL, and the size of the penis remained unchanged.5 I* [5 t7 e% {
The mother also said that the boy was no longer hav-
2 }* ?3 k% Y3 l; Y T- Z$ p; X. @ing frequent erections.7 Y5 @/ B! I% ]! K9 U
Both parents were again questioned about use of
3 s! b. b) t8 P* r3 `/ I6 ]# sany ointment/creams that they may have applied to
2 `9 W* J% ]% o# ethe child’s skin. This time the father admitted the/ C. \1 e0 K) z4 k) t* F. ?4 z+ f
Topical Testosterone Exposure / Bhowmick et al 541, X4 O7 D: X' ?' |4 o% P* i& v
use of testosterone gel twice daily that he was apply-
- V( n5 K6 f/ n# zing over his own shoulders, chest, and back area for
6 z2 w; i6 z" _* O% Qa year. The father also revealed he was embarrassed7 T9 A+ y5 P* @
to disclose that he was using a testosterone gel pre-
( Y/ R' L5 H' _0 Fscribed by his family physician for decreased libido
6 N6 t" r6 W- w0 _% Csecondary to depression.' Z9 f* ^( q( d& I
The child slept in the same bed with parents.
+ r8 e2 m0 Q1 P, kThe father would hug the baby and hold him on his
2 A0 U$ z0 X- ]0 r4 O) V$ Lchest for a considerable period of time, causing sig-0 p- H2 {! x! G9 `! A3 |! ~; E
nificant bare skin contact between baby and father.. d1 I7 _/ m7 Z" C1 ~+ x
The father also admitted that after the phone call," w" M: J( C1 a' c: P0 V ~" R
when he learned the testosterone level in the baby
1 _' P8 _, n% J ?2 `& F U% bwas high, he then read the product information
8 _ ?! u1 D9 apacket and concluded that it was most likely the rea-
/ w; O5 t u: S9 Rson for the child’s virilization. At that time, they
p* D, M: p. {: Ddecided to put the baby in a separate bed, and the
7 n* O( l6 Z" g6 e4 I+ Tfather was not hugging him with bare skin and had7 L: V$ O" Y1 H4 q5 g% D
been using protective clothing. A repeat testosterone
8 u) [- B8 v% ~* I' Qtest was ordered, but the family did not go to the
) |% z+ S M& ^& |. `* olaboratory to obtain the test.; L( m$ _/ b2 C" v) o0 }2 d
Discussion
; ~: N! f `& M5 v# a$ E0 ?Precocious puberty in boys is defined as secondary' |% ] p, s8 a2 q( z; E! d
sexual development before 9 years of age.1,4' c8 n- d% \; E2 @1 D5 G4 |, d, p; Y
Precocious puberty is termed as central (true) when7 @6 S* s8 Z; J( F0 w' f& n5 K3 x: R
it is caused by the premature activation of hypo-
/ U" X. X3 }' Mthalamic pituitary gonadal axis. CPP is more com-1 B0 W0 ^5 H4 S
mon in girls than in boys.1,3 Most boys with CPP& ~& G7 K+ p4 s. N$ r1 l: h5 h1 ~
may have a central nervous system lesion that is, n, T2 h1 q" S0 n& o0 a
responsible for the early activation of the hypothal-( w2 V' c5 L" k- g
amic pituitary gonadal axis.1-3 Thus, greater empha-$ r8 u8 ^' g- ]6 @
sis has been given to neuroradiologic imaging in8 v3 ~# i8 N3 X2 C$ B j
boys with precocious puberty. In addition to viril-( n& |% G* \5 z8 J0 q
ization, the clinical hallmark of CPP is the symmet-
. @- K* }, l b, urical testicular growth secondary to stimulation by
- Z7 B1 L. ^; r, h6 n- S7 h( E9 Mgonadotropins.1,3
% r; c& ~" u9 ?1 _- wGonadotropin-independent peripheral preco-4 ^2 a" A/ h2 @/ a- c) l. @
cious puberty in boys also results from inappropriate! {5 S; e# ?+ N# T
androgenic stimulation from either endogenous or
+ L2 d; F5 j7 P2 U4 b) F5 h- e- bexogenous sources, nonpituitary gonadotropin stim-9 f6 \+ ^) B* z. @
ulation, and rare activating mutations.3 Virilizing
1 x# ~3 J( ]* l: X% ?congenital adrenal hyperplasia producing excessive
6 _, k$ J7 b4 F* d G0 W# Gadrenal androgens is a common cause of precocious
3 J, ?1 Z* f+ R) wpuberty in boys.3,47 B2 ]) g7 u# }! i6 H; d
The most common form of congenital adrenal
& T: o' D4 j* q4 y' { yhyperplasia is the 21-hydroxylase enzyme deficiency.
6 ] k( G, O; v3 tThe 11-β hydroxylase deficiency may also result in
/ ^& p& h- j: g; Mexcessive adrenal androgen production, and rarely,$ }: K6 Z4 a& @$ Y4 G( A, B
an adrenal tumor may also cause adrenal androgen4 a; V W) e0 w! |) W1 B' X
excess.1,3
~( y; Q& |' X/ u! h/ I+ pat University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from
2 h5 f5 v# y, f* o' Y+ M/ _9 v' ^! j542 Clinical Pediatrics / Vol. 46, No. 6, July 2007! q! Z: y& k% ^, g' z3 `* {
A unique entity of male-limited gonadotropin-
( b8 E& L4 N) }. ^" ~5 Windependent precocious puberty, which is also known. q" T7 j! Q8 n* V* |
as testotoxicosis, may cause precocious puberty at a
! o6 y T! x8 N2 Q! u uvery young age. The physical findings in these boys
9 N+ |! ^* m4 a% cwith this disorder are full pubertal development,9 R1 g6 q1 Z7 W" e! W; E
including bilateral testicular growth, similar to boys
: H* p W8 d/ }/ P2 s6 ^! fwith CPP. The gonadotropin levels in this disorder
5 s4 @/ S$ C/ K) |are suppressed to prepubertal levels and do not show
! ~, x# M+ ?0 n* W3 zpubertal response of gonadotropin after gonadotropin-. I) S& E% ^; |8 P) S
releasing hormone stimulation. This is a sex-linked
+ j+ Z/ y1 w: b/ ]autosomal dominant disorder that affects only
! O7 b# U' ?: a0 x$ ]5 cmales; therefore, other male members of the family$ W3 B% L- A, o; D: g
may have similar precocious puberty.35 x s$ U- }& O* b! B/ T8 n+ H
In our patient, physical examination was incon-
1 U& V2 F v" ]sistent with true precocious puberty since his testi-4 p% H4 F6 d$ j# p- b5 {3 R) O# M- S- J) }
cles were prepubertal in size. However, testotoxicosis
5 M8 `: o2 i/ l ?was in the differential diagnosis because his father; s0 k, x' L8 O D7 ` [+ n% r
started puberty somewhat early, and occasionally, H/ _! x; N D6 i! R( ?; R
testicular enlargement is not that evident in the
0 p) y, K K; } Q% [3 h! ebeginning of this process.1 In the absence of a neg-
$ ^: c2 o* c7 [ative initial history of androgen exposure, our# K2 l" H4 q+ P+ s
biggest concern was virilizing adrenal hyperplasia,6 k+ A2 L. _5 m$ b1 m s
either 21-hydroxylase deficiency or 11-β hydroxylase
1 [$ e5 |6 b! o5 k) a+ _' p" z, x; Ddeficiency. Those diagnoses were excluded by find-+ _8 u! _: ~7 U" l! X2 X) l0 a# J
ing the normal level of adrenal steroids.- s, X, D: \7 H* ~& l4 D
The diagnosis of exogenous androgens was strongly
: O, l3 E* _& _% v. d* Esuspected in a follow-up visit after 4 months because
, j, X4 l/ P/ p6 u2 Gthe physical examination revealed the complete disap-
! ]/ @7 _4 U: O& Ipearance of pubic hair, normal growth velocity, and
# b. Y% X" t, S- L% }5 kdecreased erections. The father admitted using a testos-
: P+ I, ~- r x) d) d: `! E' |, x5 i( Aterone gel, which he concealed at first visit. He was# U% L: G5 `- g! p
using it rather frequently, twice a day. The Physicians’5 D6 t5 e$ J/ H3 D* b7 M0 v
Desk Reference, or package insert of this product, gel or
0 {% e: b5 k; Z) Q3 acream, cautions about dermal testosterone transfer to! z% B8 E0 U& [+ |
unprotected females through direct skin exposure.; z2 h* Y% d) H
Serum testosterone level was found to be 2 times the T1 l* y: {, Q% P. @# P* C& Z/ R
baseline value in those females who were exposed to
3 X8 z& `6 l% V1 |7 s5 J5 G# @even 15 minutes of direct skin contact with their male0 r' O+ Q' P. \: G# w* \5 ~
partners.6 However, when a shirt covered the applica-
, ~' W; x: ?4 d: [, `( Ztion site, this testosterone transfer was prevented.) b* e6 E' i, `* x. u2 V
Our patient’s testosterone level was 60 ng/mL,
7 T1 n6 ], ?! O; ?) R3 D- Y7 |5 gwhich was clearly high. Some studies suggest that
. a0 g$ Y$ r& C0 \7 ]dermal conversion of testosterone to dihydrotestos- h. a2 N" T. Q6 G
terone, which is a more potent metabolite, is more
1 y% J& _- O) B, {1 Hactive in young children exposed to testosterone
. P# h4 Q! b9 x7 c" ^7 ?9 O+ f. [exogenously7; however, we did not measure a dihy-
( s K% }3 Z: E: v1 \drotestosterone level in our patient. In addition to
/ E. F& a ?( |) m% ~virilization, exposure to exogenous testosterone in
3 g# i2 Z: f0 x( ~+ c2 M cchildren results in an increase in growth velocity and
3 k) m0 f% c& P0 L4 b/ Dadvanced bone age, as seen in our patient.7 d( H- U6 [" {1 h" }9 }/ d
The long-term effect of androgen exposure during
{" e$ H. i* l+ A( `' searly childhood on pubertal development and final0 X1 N( ~: E" z+ ~" w) p
adult height are not fully known and always remain( h! o! V) K7 [, q
a concern. Children treated with short-term testos-
6 v5 a( U9 o& lterone injection or topical androgen may exhibit some0 c( ]+ h2 n3 M' g( y( _4 c% x8 T
acceleration of the skeletal maturation; however, after
3 ^% {7 v1 d8 \% I+ I4 v7 Qcessation of treatment, the rate of bone maturation" Q) o( W: a' `5 v& i t0 M
decelerates and gradually returns to normal.8,9( N6 P7 s$ n/ N+ ^0 S6 G
There are conflicting reports and controversy
+ g; i; q% o8 Zover the effect of early androgen exposure on adult
& ]$ f# `, `+ F& T0 h0 w/ q) W. Epenile length.10,11 Some reports suggest subnormal& f9 r7 M y$ Y: p& b
adult penile length, apparently because of downreg-
. N' V7 `2 Q; t2 ^7 \" {ulation of androgen receptor number.10,12 However,0 h- g! ?7 T7 }" N
Sutherland et al13 did not find a correlation between
8 p2 X- ^# k2 k5 q" t4 c7 R3 achildhood testosterone exposure and reduced adult
# Y" d9 e" }* o' F7 ~$ L4 T3 Q( ypenile length in clinical studies.' |% i" C! r0 r
Nonetheless, we do not believe our patient is3 g- R8 d! H4 q+ b) e
going to experience any of the untoward effects from
8 ]* H+ A0 J/ R- g. C( K/ N1 Atestosterone exposure as mentioned earlier because
% Q& F/ ` G& gthe exposure was not for a prolonged period of time.
& v2 E8 [! r; Q) u: m2 e) ], iAlthough the bone age was advanced at the time of, n! N. I1 j! e0 F
diagnosis, the child had a normal growth velocity at) u- k2 }0 k- g. z! H3 r# x( X
the follow-up visit. It is hoped that his final adult5 o1 B* B0 t* S1 d7 A! z# Q' S7 g
height will not be affected.; ?/ r$ a* I0 b3 x
Although rarely reported, the widespread avail-# D6 n" s2 K6 w2 {$ L/ ?7 E/ C6 X
ability of androgen products in our society may
8 k9 l; @- r. T" {indeed cause more virilization in male or female
' ]3 r( C# m" ^8 p. t( @children than one would realize. Exposure to andro-
3 C$ {4 C9 _# t, \4 Ngen products must be considered and specific ques-& y3 {4 z6 E U* ^
tioning about the use of a testosterone product or
8 \' F( n; ~6 }/ \ Zgel should be asked of the family members during
# V' ~$ {4 j6 }; A$ gthe evaluation of any children who present with vir-, X7 ~# b1 e6 y" T( F" L; m
ilization or peripheral precocious puberty. The diag-
- y( D. U- H" {3 c* onosis can be established by just a few tests and by6 G, W8 o! g/ p2 D& h. [* g$ M
appropriate history. The inability to obtain such a
& ` { ]: A2 f: ^' m6 d7 x* O$ ?2 s( jhistory, or failure to ask the specific questions, may% X ~4 s5 d6 F! N
result in extensive, unnecessary, and expensive" k+ Y4 [. d; L" N. R
investigation. The primary care physician should be( j( R9 Z/ n* k* ~. h; y0 P% \2 x
aware of this fact, because most of these children8 [, J/ q; G& s
may initially present in their practice. The Physicians’
|# ^) l/ o4 e. kDesk Reference and package insert should also put a
7 F$ U& Y" t1 n( zwarning about the virilizing effect on a male or
9 l/ b! D( J( N/ Nfemale child who might come in contact with some-
5 S" ~7 h# b$ J4 t5 w+ Jone using any of these products.
! E7 n8 W& |! K6 F: R4 ^% }" TReferences# O5 `% d$ P/ z. Z$ [- H
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' i7 f' s6 S# Uand puberty in the male. In: Sperling MA, ed. Pediatric- D5 e+ X; V3 l, |+ Z% I
Endocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
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. f. N$ z2 O. E2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
4 c: g+ ?& ]7 d9 l$ i2 mpuberty in children with tumours of the suprasellar pineal
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exposure to testosterone. Pediatrics. 1999;104:e23.0 I# Q7 t0 p m! E( f2 j$ W
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* T8 |' d2 p9 l, \4 I; iStanford, CA: Stanford University Press; 1959.
$ u; D: Y! y1 _9 Z6. Physicians’ Desk Reference. Androgel 1% testosterone,
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4 V, N1 v5 b9 q5 a+ D, r& gEconomics Company, Inc; 2004:3239-3241.
8 j( n4 X; S" b7. Klugo RC, Cerny JC. Response of micropenis to topical3 k, U. r M5 m8 x' ^& I
testosterone and gonadotropin. J Urol. 1978;119:; P! Y/ K0 e) x3 o/ h5 B
667-668.( }/ V+ t$ j5 a# l
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