TY  - GEN
AU  - Kulin,H E
AU  - Frontera,M A
AU  - Demers,L M
AU  - Bartholomew,M J
AU  - Lloyd,T A
TI  - The onset of sperm production in pubertal boys. Relationship to gonadotropin excretion
SN  - 0002-922X
PY  - 1989///0321
KW  - Adolescent
KW  - Child
KW  - Follicle Stimulating Hormone
KW  - urine
KW  - Humans
KW  - Luteinizing Hormone
KW  - Male
KW  - Puberty
KW  - Spermatogenesis
KW  - Spermatozoa
KW  - Urine
N1  - Publication Type: Journal Article
ER  -