the pulsatile discharge of luteinizing hormone ( lh ) in nine patients with polycystic ovary syndrome ( pco ) and nine patients with amenorrhoea but without pco , who exhibited lh discharge in response to oestrogen provocation , were studied by 4-h measurement of gonadotrophin pulsatility before and after a course of progesterone injections .
C0002453
amenorrhoea
C0033308
progesterone