Fig. 1From: Intrauterine administration of human chorionic gonadotropin does not improve pregnancy and life birth rates independently of blastocyst quality: a randomised prospective studyFlow chart diagram of the study. Out of 1339 patients who underwent an IVF therapy, 1252 were found to be eligible to participate. Forty-three patients declined to participate. Patients were randomized after oocyte retrieval in both cohorts. All patients underwent the same stimulation protocol (GnRHa long)Back to article page