Fig. 2From: Which is the best intrauterine insemination timing choice following exogenous hCG administration during ovulation induction by using clomiphene citrate treatment? A retrospective studyReceiver operating characteristic (ROC) analysis of delayed hCG trigger during ovulation induction treatment and clinical pregnancy rate. Area under curve (AUC) 0.59; 95 % CI 0.51–0.67; p 0.01Back to article page