the changes induced to the uterus by gonadotrophin injection were similar to those resulting from spontaneous onset of puberty , with the effectiveness of 500 i.u . of pmsg with 250 i.u . of hcg having been stronger than that of 400 i.u . of pmsg with 200 i.u . of hcg .
C0018061
gonadotrophin
C0018062
hcg