Risk of preterm birth after blastocyst embryo transfer: a large population study using contemporary registry data from Australia and New Zealand

• Georgina M. Chambers, Abrar A. Chughtai, Cynthia M. Farquhar, Yueping A. Wang

• Fertility and Sterility, October 2015, Elsevier
• DOI: 10.1016/j.fertnstert.2015.07.1130