Fig. 1From: Patients with IVF complicated by moderate-to-critical OHSS experience increased thrombosis, GDM and neonatal NICU admission but slightly shorter gestation compared with matched IVF counterparts: A retrospective Chinese cohort studyStudy enrollment and outcomes. Clinical pregnancy: A pregnacy diagnosed by ultrasonographic visualization of one or more gestational sacs of definitive clinical signs of pregnancy. In addition to intra-uterine pregnancy, it includes a clinically documented ectopic pregnancy. PSM: Prospensity score matchingBack to article page