Secondary Sexual Characteristics in Boys
نویسندگان
چکیده
منابع مشابه
Secondary sexual characteristics in boys: data from the Pediatric Research in Office Settings Network.
BACKGROUND Data from racially and ethnically diverse US boys are needed to determine ages of onset of secondary sexual characteristics and examine secular trends. Current international studies suggest earlier puberty in boys than previous studies, following recent trend in girls. METHODS Two hundred and twelve practitioners collected Tanner stage and testicular volume data on 4131 boys seen f...
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ژورنال
عنوان ژورنال: Archives of Pediatrics & Adolescent Medicine
سال: 2001
ISSN: 1072-4710
DOI: 10.1001/archpedi.155.9.1022