In unselected patients, elective single embryo transfer prevents all multiples, but results in significantly lower pregnancy rates compared with double embryo transfer: a randomized controlled trial
2017 ◽
Vol 108
(3)
◽
pp. e19
◽
2016 ◽
Vol 81
(5)
◽
pp. 394-404
◽
2016 ◽
Vol 106
(3)
◽
pp. e312
◽