Hamilton 2015 + 1117 subfertile couples + 889 – WHO abnormal (76%) + 288 – unexplained (24%) + TMSC < 20*10ˆ6 – 60% + TMSC > 20*10ˆ6 – 40% Page 77 of 175 PRECONGRESS COURSE 01 I GENEVA, SWITZERLAND – 2 JULY 2017 81