1. Increased endometrial thickness on the day of human chorionic gonadotropin injection does not adversely affect pregnancy or implantation rates following in vitro fertilization– embryo transfer 
Carole Dietterich, Jerome H Check, M.D., Ph.D., Jung K Choe, M.D., Ahmad Nazari, M.D., Deborah Lurie, Ph.D. 
Fertility and Sterility 
Volume 77, Issue 4, Pages (April 2002)
DOI: /S (01)

2. FIGURE 1
Clinical pregnancy rates by individual endometrial thickness in 570 women. The number of pregnancies per number of women are shown for each thickness.
Dietterich. Pregnancy rates with thickened endometrium. Fertil Steril 2002.
Fertility and Sterility  , DOI: ( /S (01) )