Fig. 2From: Investigating the impact of SARS-CoV-2 infection on basic semen parameters and in vitro fertilization/intracytoplasmic sperm injection outcomes: a retrospective cohort study Propensity score matching for the control group and the case group A-B The distribution of propensity scores before and after matching between the groups C-D The distribution of standard differences before and after matching between the groupsBack to article page