Fig. 2From: Is it necessary to monitor the serum luteinizing hormone (LH) concentration on the human chorionic gonadotropin (HCG) day among young women during the follicular-phase long protocol? A retrospective cohort studyLinear relationship between serum LH concentration of HCG day and eggs retrieved. The figure shows that in the follicular-phase long protocol, with the increase in LHHCG, the number of retrieved eggs decreasedBack to article page