title: Re: Ultrasound guidance during embryo transfer: a systematic review and meta-analysis of randomized controlled trials.
authors.affiliation: Obstetrics and Gynaecology, The University of Alexandria, Alexandria Fertility Center, 22 Victor Emanuel Square, Smouha, Alexandria, Egypt, 21615.
authors.forename: H N
authors.initials: HN
authors.lastname: Sallam
mesh_terms: D004624:Embryo Transfer / Q000379:methods*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome; D016032:Randomized Controlled Trials as Topic; D018084:Ultrasonography, Interventional / Q000379:methods*