Early pregnancy wastage in IVF (in vitro fertilization) patients Hung-Ching LiuZev Rosenwaks Review Pages: 65 - 72
A morphologic study of unfertilized oocytes and abnormal embryos in human in vitro fertilization Hanna BałakierRobert F. Casper Special Contributions Pages: 73 - 79
Impact of a second insemination on the results of an in vitro fertilization-embryo transfer (IVF-ET) program N. W. FahmyJ. BenoitR. Sullivan Special Contributions Pages: 80 - 83
The effect of a prolonged artificial follicular phase on endometrial development in an oocyte donation program Johnny S. YounisNathan MordelNeri Laufer Special Contributions Pages: 84 - 88
The effect of cryopreservation on the development of S- and G2-phase mouse embryos Hanna BałakierMaria ZenzesRobert F. Casper Special Contributions Pages: 89 - 95
Glass-bead column separation of motile and nonmotile human spermatozoa Noah LechtzinWilliam GarsideNina Hillman Special Contributions Pages: 96 - 100
Treatment of severe male-factor infertility with high concentrations of motile sperm by microinsemination in embryo cryopreservation straws Diane G. HammittDave L. WalkerMonte R. Bennett Special Contributions Pages: 101 - 110
Treatment of sperm with high-ionic strength medium increases microsurgical fertilization rates of rabbit oocytes fertilized by subzonal placement of sperm Brijinder S. MinhasWilliam E. RoudebushMelvin G. Dodson Special Contributions Pages: 111 - 115
“Prediction of implantation by the sonographic appearance of the endometrium during controlled ovarian stimulation for in vitro fertilization” by Yael Gonen and Robert F. Casper Wilfried FeichtingerRobert F. CasperYael Gonen Letters to the Editor Pages: 116 - 116
Pregnancies after fertilization and cleavage in human coculture Ariff BongsoSoon Chye NgShivani Vasuthevan Letters to the Editor Pages: 116 - 117
Workshop on Preconception and Preimplantation Diagnosis of Genetic Disorders Chicago, 1–3 October 1991 Announcement Pages: 118 - 118