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is a significant concern for physicians. Central' V' k# z! G1 U# S3 R+ W; a
precocious puberty (CPP), which is mediated" ~2 @& S2 ~0 f* N' Y* C
through the hypothalamic pituitary gonadal axis, has6 y6 P9 D: N9 S U( s, J5 `( ?
a higher incidence of organic central nervous system
; Y; r+ J# q5 h/ qlesions in boys.1,2 Virilization in boys, as manifested& R9 k# k; [! k/ t! A( g
by enlargement of the penis, development of pubic
2 N7 K# D" j/ J! ghair, and facial acne without enlargement of testi-: M ]3 w s" R5 Z- U+ `9 G
cles, suggests peripheral or pseudopuberty.1-3 We0 s! k& {+ I8 b& g
report a 16-month-old boy who presented with the
7 j6 P: f; S% i' q" \enlargement of the phallus and pubic hair develop-" y s" G( M% m& l6 a0 Q7 t$ B' w
ment without testicular enlargement, which was due0 T; R/ v" M8 f" I
to the unintentional exposure to androgen gel used by
x% C# Y% h& P& D6 J \% ~the father. The family initially concealed this infor-
; i9 j2 R, m) p* m" c$ k6 Bmation, resulting in an extensive work-up for this) k: r4 Z" E. [- a! Q% s& G& j
child. Given the widespread and easy availability of
4 K$ [+ U9 C* W7 i3 P$ R/ Jtestosterone gel and cream, we believe this is proba-! O2 ~1 v+ P9 [. O* K3 ^! P
bly more common than the rare case report in the2 K/ e& B7 x$ W' n& S# |/ A
literature.4
- ]0 c. j; J! B3 k* T1 I8 m9 Z0 [$ `. \Patient Report2 O5 P# G! P2 E! s
A 16-month-old white child was referred to the* \7 H3 O" {2 @0 v
endocrine clinic by his pediatrician with the concern
( I3 J* M1 t4 y# A$ k' J* Nof early sexual development. His mother noticed
: K. n$ K# V9 t0 C# Vlight colored pubic hair development when he was
2 w/ {& Y; W+ I- Y. w' _! IFrom the 1Division of Pediatric Endocrinology, 2University of
! M0 g) j' I3 J2 g& O4 iSouth Alabama Medical Center, Mobile, Alabama.9 c# \1 D( X' V2 a7 W4 @5 l
Address correspondence to: Samar K. Bhowmick, MD, FACE,6 R, o% f+ o+ s6 j# V. v* ~
Professor of Pediatrics, University of South Alabama, College of
" b& k: P( o$ U3 U' r5 u$ L2 w1 EMedicine, 2451 Fillingim St. Mastin 212, Mobile, AL 36617-2297;* ~. u7 K; L( o' `6 {
e-mail: [email protected].
: F+ @$ n+ Z) h& M2 j; D8 `' Kabout 6 to 7 months old, which progressively became
0 X" z z/ P3 l- ^darker. She was also concerned about the enlarge-
# k0 m l6 e: x% W# [; Q6 V" Iment of his penis and frequent erections. The child
1 k- a3 k1 r: N U0 ewas the product of a full-term normal delivery, with
/ _ X0 e6 Q% {$ w2 G- Ja birth weight of 7 lb 14 oz, and birth length of1 @: p. m4 }% a6 P9 r
20 inches. He was breast-fed throughout the first year
5 [6 [6 t) V: K( |2 u7 Iof life and was still receiving breast milk along with+ T( |8 a3 D8 ^3 z1 v
solid food. He had no hospitalizations or surgery,
3 }! f0 a2 M3 Dand his psychosocial and psychomotor development
) J/ u6 Q) v1 S# u6 ]$ [was age appropriate.
9 j1 f6 b2 t% T0 Z5 GThe family history was remarkable for the father,
6 E! R4 r, J! }who was diagnosed with hypothyroidism at age 16,
5 j- a! L0 r. m( x& Q3 s0 [& n$ U& Xwhich was treated with thyroxine. The father’s+ r( o4 t0 t g' V T+ g
height was 6 feet, and he went through a somewhat1 x) I, d* W9 \% x/ A$ ^) {
early puberty and had stopped growing by age 14.
9 v, w( n5 r% bThe father denied taking any other medication. The
; M) ^8 K! q; F2 {8 t7 hchild’s mother was in good health. Her menarche
0 e7 ?% Z$ q, kwas at 11 years of age, and her height was at 5 feet$ B8 Q- P/ J4 d7 V
5 inches. There was no other family history of pre-4 m% a& L! s: A, N, H, H) \
cocious sexual development in the first-degree rela-- s, U' p" Y0 G6 s& K, v% |, W$ Z
tives. There were no siblings.+ r0 _/ z- ~& F5 b3 g! o
Physical Examination8 w! t* V2 b2 S
The physical examination revealed a very active,
) h7 U* W+ K, ?1 O5 I/ Vplayful, and healthy boy. The vital signs documented# U9 L/ s: f& Z* C
a blood pressure of 85/50 mm Hg, his length was
% [; A: [) f- c- g90 cm (>97th percentile), and his weight was 14.4 kg% V( f- b& e% a/ a! e4 Y
(also >97th percentile). The observed yearly growth
2 f! A. ]7 W) z- H7 ^9 cvelocity was 30 cm (12 inches). The examination of% O/ T' }* [1 o6 r9 r! [3 z
the neck revealed no thyroid enlargement.
1 ^# p" e' ~! s" n; M) U# X3 YThe genitourinary examination was remarkable for
, r& A* x; Z3 Senlargement of the penis, with a stretched length of# ]: v: A6 T( H k; N
8 cm and a width of 2 cm. The glans penis was very well& J$ z& Q0 G) J1 Z) H' G
developed. The pubic hair was Tanner II, mostly around- p4 F* `- P# L/ Y, C7 @9 v$ Y2 Z& P# u
540' L2 z" r- G2 |* p
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from2 L8 S) V; M2 W+ G, w3 }* H* N6 y; |
the base of the phallus and was dark and curled. The
6 }5 Z& O( N/ c8 f/ @testicular volume was prepubertal at 2 mL each., ~% Q' m1 O; S% _4 C) C. T
The skin was moist and smooth and somewhat9 y; Q6 U) K6 G, x2 E- X
oily. No axillary hair was noted. There were no5 g- |/ O5 x5 m5 d4 d
abnormal skin pigmentations or café-au-lait spots.! }9 ?" o: i8 a. B0 G/ D
Neurologic evaluation showed deep tendon reflex 2+
( @2 A: J7 B4 F/ O! y8 q( Sbilateral and symmetrical. There was no suggestion8 W0 M" d$ k; C7 s/ ~# K' j, c
of papilledema.
4 l8 X& U0 x# g7 x a! ? uLaboratory Evaluation
/ B: N |) U) a# ^5 \' E. \. K4 F! pThe bone age was consistent with 28 months by `6 Y+ ?2 p. {
using the standard of Greulich and Pyle at a chrono-
8 a7 c5 K! M1 I$ k _- b ~logic age of 16 months (advanced).5 Chromosomal, u9 u# [& I/ z
karyotype was 46XY. The thyroid function test+ R E: B7 K! J5 C; ?; O" x
showed a free T4 of 1.69 ng/dL, and thyroid stimu-
% H9 |( v0 B1 a! dlating hormone level was 1.3 µIU/mL (both normal). E' }& k; m% `2 L# X0 C! D! `
The concentrations of serum electrolytes, blood0 N6 T! ^& }9 d: S/ V& l
urea nitrogen, creatinine, and calcium all were
- T; _- f( n! R4 u' H V( g2 wwithin normal range for his age. The concentration7 G) G+ Z7 }# ~9 s3 Y* s! r. U
of serum 17-hydroxyprogesterone was 16 ng/dL
9 K* l; q& y( t3 }% O% e1 Z& K(normal, 3 to 90 ng/dL), androstenedione was 20* i0 c- G' B( @9 y* R {+ k
ng/dL (normal, 18 to 80 ng/dL), dehydroepiandros-) h0 l) C' n( ?- G0 |& l
terone was 38 ng/dL (normal, 50 to 760 ng/dL),
# a- l) t& t- ?( _desoxycorticosterone was 4.3 ng/dL (normal, 7 to
$ Z, w. Y. o' b7 ~4 A1 F9 J1 h49ng/dL), 11-desoxycortisol (specific compound S)
( J' \2 n: S! b) h" V( @was 43 ng/dL (normal, 10 to 156 ng/dL), serum cor-
! [$ i! ]7 C( Ktisol was 7.6 µg/dL (normal, 2.8 to 23 µg/dL), total
% [ m7 M4 W( O: a5 j4 l `) Dtestosterone was 60 ng/dL (normal <3 to 10 ng/dL),4 ~& I, M( n$ w' `
and β-human chorionic gonadotropin was less than6 h- b8 O! A6 L5 Z
5 mIU/mL (normal <5 mIU/mL). Serum follicular
: z/ C9 R! ~" K; t y4 B. B4 @stimulating hormone and leuteinizing hormone" l$ a# S) y4 r, k$ l- C4 z" [1 v- w+ h
concentrations were less than 0.05 mIU/mL; P+ d4 H5 x2 S! a# F/ N
(prepubertal).
5 h% N3 ^2 g! M$ PThe parents were notified about the laboratory
0 L3 d* i4 o+ t# T& iresults and were informed that all of the tests were
. I, G7 f% Z, H4 T0 F$ onormal except the testosterone level was high. The
* x# W. s/ B( B; T: v9 g" tfollow-up visit was arranged within a few weeks to5 ^3 l! v6 G/ p& k/ ]3 }2 @8 R
obtain testicular and abdominal sonograms; how-
+ S( ~* \, ]% qever, the family did not return for 4 months.
7 s" x+ d: Y* X5 @: b! @+ i# M+ yPhysical examination at this time revealed that the' M8 `# i5 P R' N
child had grown 2.5 cm in 4 months and had gained9 @( i' z7 t* O; O: W" N J' F* ]1 P
2 kg of weight. Physical examination remained( x5 g4 O+ `! h2 ^6 J3 e
unchanged. Surprisingly, the pubic hair almost com-
. H% a6 z6 F8 C( I* o# tpletely disappeared except for a few vellous hairs at
) t6 ` ]2 a' `! Y- B8 [the base of the phallus. Testicular volume was still 2
% O& }- R" g0 l% J/ FmL, and the size of the penis remained unchanged.
( n9 J X' h4 ?, [The mother also said that the boy was no longer hav-+ _$ h" r4 p+ v4 f( d4 x' K
ing frequent erections.- D; l& L* k6 t4 n" x# R
Both parents were again questioned about use of, c" c' @( D: ^" J: q0 p
any ointment/creams that they may have applied to
+ n" }% t3 m. U( w7 bthe child’s skin. This time the father admitted the7 |: V' M5 U: Y6 H
Topical Testosterone Exposure / Bhowmick et al 541
* h2 F, T% W1 ause of testosterone gel twice daily that he was apply-% M* J5 S/ [8 _7 v9 E
ing over his own shoulders, chest, and back area for% A: I8 H6 ]7 ?- k- b* _$ z8 Z
a year. The father also revealed he was embarrassed
0 V0 W( e. {1 e5 p0 w7 o# oto disclose that he was using a testosterone gel pre-$ _ M! T2 J& N
scribed by his family physician for decreased libido
2 Y( j6 y4 y7 c, C+ z" C9 N4 Y/ {( nsecondary to depression.) ~" b w$ M' f# F% }) {
The child slept in the same bed with parents.: `- j5 Y& Q( T. d5 E4 C" |
The father would hug the baby and hold him on his
) a0 q% i) ~( T/ M/ Fchest for a considerable period of time, causing sig-6 W8 Z( }" B0 r% l
nificant bare skin contact between baby and father.
8 B4 U* X* ^* T$ e0 j& v. QThe father also admitted that after the phone call,
) }' v' d4 a; o9 }4 z$ |+ Gwhen he learned the testosterone level in the baby
6 _$ c8 g' u$ `- Owas high, he then read the product information
# a% ?5 _- r! g/ rpacket and concluded that it was most likely the rea- [) m5 G1 y, O* E* Y2 Z- |9 j, _2 S# h
son for the child’s virilization. At that time, they
5 l4 s7 P% e0 d: p' n. b6 Gdecided to put the baby in a separate bed, and the4 ?* T4 D: Q2 |7 j4 I
father was not hugging him with bare skin and had
/ v' B, s% p; |9 f& S; @- jbeen using protective clothing. A repeat testosterone
j ` d* I5 {+ j( D* btest was ordered, but the family did not go to the
/ g4 \5 j9 |: ]- \9 I1 s2 \9 o& A% H0 Jlaboratory to obtain the test.
* Z+ R1 A2 a- f8 d; E9 PDiscussion
0 I8 t# l6 x4 o! |( M! y% ?/ S: uPrecocious puberty in boys is defined as secondary
, L( q/ o5 h- `9 H, {) a# d( _sexual development before 9 years of age.1,4- G$ e" ^2 K. J, {$ J& E# _4 e
Precocious puberty is termed as central (true) when5 s' k. S$ X# e, e
it is caused by the premature activation of hypo-. S2 u, Q1 t9 X
thalamic pituitary gonadal axis. CPP is more com-. ]& b' Y3 n2 F" f( \
mon in girls than in boys.1,3 Most boys with CPP7 @8 S0 n! |( v+ _3 N
may have a central nervous system lesion that is
a, t; [5 c( ^9 `0 P; Kresponsible for the early activation of the hypothal-
5 J; s7 A( B. jamic pituitary gonadal axis.1-3 Thus, greater empha-
% Q! D; k1 Y( ]/ g* @sis has been given to neuroradiologic imaging in% i) y- k9 N% S" I2 c6 n0 |9 h
boys with precocious puberty. In addition to viril-2 s9 _3 S3 p8 v J
ization, the clinical hallmark of CPP is the symmet-' n/ z8 N- h6 H, p0 ^
rical testicular growth secondary to stimulation by
4 a# l" l, p) \gonadotropins.1,3 Q& a" Z& R7 Q) }5 l! o
Gonadotropin-independent peripheral preco-) S. V: H2 q* q J$ [9 E- q
cious puberty in boys also results from inappropriate6 j+ N5 c4 ]0 \- z2 \( c
androgenic stimulation from either endogenous or
0 K: {, u, r& Q( P* Lexogenous sources, nonpituitary gonadotropin stim-* v5 m& G2 _+ m- z
ulation, and rare activating mutations.3 Virilizing
. i: `* F+ m X- f- ucongenital adrenal hyperplasia producing excessive
0 k2 K8 n" C a7 w( c' wadrenal androgens is a common cause of precocious
/ X( l! P {) o0 E! t/ I4 Mpuberty in boys.3,44 p4 l" o6 \8 B9 I6 c
The most common form of congenital adrenal
& v' P6 T2 H9 S2 khyperplasia is the 21-hydroxylase enzyme deficiency.! _6 |; ^ O" ^3 d
The 11-β hydroxylase deficiency may also result in
+ |4 j% W. ] b1 w& h' oexcessive adrenal androgen production, and rarely,
5 ^" z! D0 y2 L3 X9 kan adrenal tumor may also cause adrenal androgen
, I y8 M3 s0 h4 q, g% A1 I. aexcess.1,3" @7 @ h7 M( H6 ^1 \& r& s
at University of Manchester Library on May 25, 2015 cpj.sagepub.com Downloaded from$ `* ~: ^8 [3 u8 y- E i8 u
542 Clinical Pediatrics / Vol. 46, No. 6, July 2007! l% T+ o l8 z8 Z1 G; W5 o
A unique entity of male-limited gonadotropin-
) x; E; q3 A1 o6 yindependent precocious puberty, which is also known4 W: ]$ n9 r2 |8 R; }6 T: o6 i
as testotoxicosis, may cause precocious puberty at a
0 G& s' F7 x0 ^very young age. The physical findings in these boys3 b8 l( p) E1 M4 x
with this disorder are full pubertal development,3 u Y$ r5 V( \4 }1 W9 l- U
including bilateral testicular growth, similar to boys
% [( S7 l9 A0 R8 U' P: }with CPP. The gonadotropin levels in this disorder
+ r8 S& M7 q5 B( j7 T% Ware suppressed to prepubertal levels and do not show J" t) [6 j2 F/ r* ^
pubertal response of gonadotropin after gonadotropin- m v- b8 w! `/ i% Y
releasing hormone stimulation. This is a sex-linked& _$ Z% v- ^* t+ k/ e4 J
autosomal dominant disorder that affects only; w$ _+ D8 T1 i5 h1 {6 e+ M
males; therefore, other male members of the family
4 y- O5 u P: I. E. }+ N& Nmay have similar precocious puberty.3: |. N/ N* @7 G1 \- t) P2 _! |2 H& G3 q
In our patient, physical examination was incon-* Y/ A h2 b) k: a/ d1 A! {9 W( V
sistent with true precocious puberty since his testi-( j7 W$ W r( P: l
cles were prepubertal in size. However, testotoxicosis* \( s& x: ^3 H& _9 n* Y
was in the differential diagnosis because his father
8 b1 G, Q+ b/ d; Estarted puberty somewhat early, and occasionally,2 a6 U6 C, ~( w) F0 c4 ^
testicular enlargement is not that evident in the
; r' \; c7 x: _0 ]4 K$ Obeginning of this process.1 In the absence of a neg-
* R+ B& u( d: z' u C j! f fative initial history of androgen exposure, our
# f* x) n* u) o5 Fbiggest concern was virilizing adrenal hyperplasia,+ D2 [5 I5 E6 Y
either 21-hydroxylase deficiency or 11-β hydroxylase$ J! N1 ]/ E3 n9 U3 ]
deficiency. Those diagnoses were excluded by find-) q0 M1 i, b: G2 E
ing the normal level of adrenal steroids.: G% X: d3 ?# }% K6 n; p
The diagnosis of exogenous androgens was strongly4 L' V( l& ~! A
suspected in a follow-up visit after 4 months because
/ |! S2 ~/ H7 \* F( N; gthe physical examination revealed the complete disap-
# b# M! H! g! ^+ P' xpearance of pubic hair, normal growth velocity, and
q: E. d8 F6 [decreased erections. The father admitted using a testos-) D& z8 ]& _. C* Q
terone gel, which he concealed at first visit. He was
( k4 C6 a6 A/ o$ F; jusing it rather frequently, twice a day. The Physicians’
6 ~% h- X% h0 rDesk Reference, or package insert of this product, gel or
3 D/ [+ ~$ s: Hcream, cautions about dermal testosterone transfer to
8 y) @: i& F" x; c' e. qunprotected females through direct skin exposure.! F2 I3 g& H$ H- G: v/ x+ o
Serum testosterone level was found to be 2 times the. [; \7 o! _, S7 i- Y6 O$ }
baseline value in those females who were exposed to, H4 L1 N; x2 _# i4 Q
even 15 minutes of direct skin contact with their male
0 \- {3 D2 I5 p' C/ J% R- `partners.6 However, when a shirt covered the applica-: D5 s& h7 c) O2 g; l, a9 s* U" Z
tion site, this testosterone transfer was prevented.
- h# K7 v; R' @- y5 _Our patient’s testosterone level was 60 ng/mL,
6 P- Y+ D7 c! j4 z8 t% f( xwhich was clearly high. Some studies suggest that! M1 d2 n) k! R
dermal conversion of testosterone to dihydrotestos-) F/ s$ G p2 u8 m, y
terone, which is a more potent metabolite, is more
. X. y7 d/ R; y% `1 x8 Zactive in young children exposed to testosterone k2 P6 P6 O, Z
exogenously7; however, we did not measure a dihy-
! A3 V8 r9 g2 R. n! adrotestosterone level in our patient. In addition to2 d" `0 ^+ S: M! S2 L6 z% j% a+ ]/ B
virilization, exposure to exogenous testosterone in2 z' t6 s- O8 b
children results in an increase in growth velocity and
- {4 I- E- m" n% Q& P Y4 z2 d( h. qadvanced bone age, as seen in our patient.
1 {+ q4 N* k& wThe long-term effect of androgen exposure during
a \: c! O$ e' |6 \. t/ learly childhood on pubertal development and final
. S8 ], l2 Y& m" @adult height are not fully known and always remain
7 O0 G4 q6 Z1 H. p" o5 va concern. Children treated with short-term testos-
" Q! a1 L0 |1 o( Z/ U5 u5 g1 rterone injection or topical androgen may exhibit some
- y2 v. K4 Y/ }$ e$ x3 cacceleration of the skeletal maturation; however, after- z' [; j# {/ s
cessation of treatment, the rate of bone maturation; I- H: q; d5 m+ N1 E t
decelerates and gradually returns to normal.8,9
9 ~& U. e1 x' l" L( B$ VThere are conflicting reports and controversy
% G. `/ w8 \; \. l) wover the effect of early androgen exposure on adult9 K( k5 O/ K5 g
penile length.10,11 Some reports suggest subnormal3 q. K1 V7 K _0 \- n8 y, P" \
adult penile length, apparently because of downreg-9 D& x9 j. [! M, A) h. k3 [
ulation of androgen receptor number.10,12 However,
! {3 x: ?! n1 L* _% jSutherland et al13 did not find a correlation between
$ K9 a+ Z) i; s' O) N; P3 dchildhood testosterone exposure and reduced adult
6 L6 c: i+ M5 p0 Y+ R: i" d- Epenile length in clinical studies.( E0 W* j5 O: x2 s, q3 u I& @
Nonetheless, we do not believe our patient is, P8 n5 y& |3 i \
going to experience any of the untoward effects from
% C' f) d+ _% L# X( s7 U, _4 [testosterone exposure as mentioned earlier because
: n# a( Q# D0 a: f! d" K7 Kthe exposure was not for a prolonged period of time.
/ d; G6 V0 \1 p' E! G9 P6 eAlthough the bone age was advanced at the time of
2 A; b4 Z/ G5 {4 V1 v( udiagnosis, the child had a normal growth velocity at7 {& D: f% C/ s# r$ \/ R5 q I
the follow-up visit. It is hoped that his final adult6 z) M# l* U# r' U4 z! w! k% `1 X) S
height will not be affected.
; T7 o C1 X# s1 E6 }Although rarely reported, the widespread avail- C6 X/ H0 j: Q0 Q1 v' x& ^. y: I
ability of androgen products in our society may
/ e/ Y) O4 @/ }& P6 C$ M, Oindeed cause more virilization in male or female2 u( [3 Q7 C# ?4 g' o
children than one would realize. Exposure to andro-7 }( {+ g- L. m' V$ O. A
gen products must be considered and specific ques-8 n$ O0 K, X( L7 o7 f" c: w% U
tioning about the use of a testosterone product or5 B$ [- @) `$ h1 z- k5 w$ W
gel should be asked of the family members during
- J' n7 V( S) o- Sthe evaluation of any children who present with vir-7 J2 V/ q4 f: S
ilization or peripheral precocious puberty. The diag-; a7 ~7 N; D& Z3 {; C/ z( j8 u
nosis can be established by just a few tests and by! _6 U$ B0 x" c3 k% F$ E
appropriate history. The inability to obtain such a
J+ Y( y* w) l2 ihistory, or failure to ask the specific questions, may( F& G% g+ W- |
result in extensive, unnecessary, and expensive) K1 b' x$ ?5 m$ A( [
investigation. The primary care physician should be( T" |; m) c# r2 W! N W$ Q
aware of this fact, because most of these children; F$ H, t0 r2 {$ p! N
may initially present in their practice. The Physicians’6 G A2 L" U( w3 }1 k) |% k$ \8 I2 O
Desk Reference and package insert should also put a }0 k/ E4 [- B8 n3 R6 S
warning about the virilizing effect on a male or* \$ N$ ]5 u. ]
female child who might come in contact with some-) ~$ f: M& j( o& ^6 L; M5 {) k$ Z
one using any of these products.$ g2 w3 X# f F! `6 t$ V
References
1 Q+ y8 g( G, M$ D) |1. Styne DM. The testes: disorder of sexual differentiation
4 a! g; J0 O4 t$ s8 P- hand puberty in the male. In: Sperling MA, ed. Pediatric
K1 s( V/ O# e8 p0 W D( x4 c5 tEndocrinology. 2nd ed. Philadelphia, PA: WB Saunders;
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2. Rivarola M, Belgorosky A, Mendilaharzu H, et al. Precocious
, {, X$ \4 d7 F# L1 u& \7 [9 Dpuberty in children with tumours of the suprasellar pineal
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U! b. W/ s) V" T) vareas: organic central precocious puberty. Acta Paediatr.& L( ?' V3 s& Z7 ]6 |
2001;90:751-756.4 [$ c# k6 _) H% n
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& X5 m+ Z* N4 Z3 D& k) Texposure to testosterone. Pediatrics. 1999;104:e23.. y1 p9 K. _! ^; y- v W
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Stanford, CA: Stanford University Press; 1959.
& O5 u) c5 t- U' d6. Physicians’ Desk Reference. Androgel 1% testosterone,5 P2 Y: |" P& Y: u, i7 E
Unimed Pharmaceutical Inc. Montvale, NJ: Medical
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