1. Editorial: A novel method to evaluate pregnancy rates following in vitro fertilization to enable a better understanding of the true efficacy of the procedure;Katsoff B;Clin Exp Obst Gyn,2005
2. Successful pregnancy after replacement of embryos which had been frozen and thawed and both the pronuclear and cleavage stage;Mowat LG;Hum Reprod,1994
3. Pregnancy achieved with pronuclear‐stage embryos that were cryopreserved and thawed twice: A case report;Baker A;J Assist Reprod Genet,1996
4. The efficacy of the transfer of twice frozen‐thawed embryos with the vitrification method;Kumasako Y;Fertil Steril,2009
5. Pregnancy rates following the exclusive transfer of twice frozen twice thawed embryos using a modified slow cool cryopreservation technique;Check JH;Clin Exp Obst & Gyn,2013