Open AccessMedicine
W. A. Marshall, J. Tanner
1970.2.1ARCHIVES OF DISEASE IN CHILDHOOD
tlooto Summary
Mixed longitudinal data on the physical changes at puberty in 228 normal boys are presented together with normal standards for stages of genital and pubic hair development, finding that boys' genitalia begin to develop only about 6 months later than the girls' breasts and Pubic hair appears about 1½ years later in boys than in girls.
Abstract
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Citation format
MARSHALL, W. A.; TANNER, J. Variations in the pattern of pubertal changes in boys. ARCHIVES OF DISEASE IN CHILDHOOD, 1970, 45: 13–23.