2.7.5. Collection of background information.
infertility
For eligibility screening of the subjects, the principal investigator or sub-investigator collects the background information, including age, height, weight, history of previous and current medical illnesses, concomitant drugs, history of pregnancy and childbirth, history of infertility treatment, and status of frozen embryo preparation during the screening period. Concomitant drugs are checked at every visit to the clinic. The status of frozen embryo preparation includes the date and number of eggs retrieved, Veeck’s grades of early embryos, and Gardner’s grades of blastocysts. This information is documented in the electronic medical records.