1. The impact of single vs double blastocyst transfer on pregnancy outcomes and the multiple birth rate: a prospective, randomized control trial;Abuzeid;Fertility and Sterility,2014
2. The impact of single vs double blastocyst transfer on pregnancy outcomes and the multiple birth rate: a prospective, randomized control trial;Abuzeid;Facts, Views & Vision: Issues in Obstetrics, Gynaecology and Reproductive Health,2017
3. Comparison of pregnancy rates following transfer of one embryo versus two in patients under going fertility treatment controlled-trials.com/ISRCTN69937179
4. Australian Study of Single Embryo Transfer (ASSET) clinical protocol. A multi-centre double blind randomised controlled trial to compare the outcomes of pregnancy following the transfer of either a single embryo (SET) or two embryos (DET) in an optimal group of patients undergoing in-vitro fertilization (IVF) with or without intra-cytoplasmic sperm injection (ICSI) [ personal communication] Email to Dr Michael Davies
5. Is it justified to transfer two embryos in oocyte donation? A pilot randomized clinical trial;Clua;Reproductive Biomedicine Online,2015