Fertility and Sterility
Volume 85, Issue 1 , Pages 271-272 , January 2006

Always an important question: the experimental unit—“patients or cycles”?

Received 11 September 2005

References 

  1. Lukaszuk K , Liss J , Lukaszuk M , Bozena M . Optimization of estradiol supplementation during the luteal phase improves the pregnancy rate in women undergoing in vitro fertilization-embryo transfer cycles . Fertility Sterility . 2005;83:1372–1376
  2. Hogan JW , Blazar AS . Hierarchical logistic regression models for clustered binary outcomes in studies of IVF-ET . Fertil Steril . 2000;73:575–581

PII: S0015-0282(05)03674-5

doi: 10.1016/j.fertnstert.2005.10.010

Fertility and Sterility
Volume 85, Issue 1 , Pages 271-272 , January 2006

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