1. The usefulness of the sperm penetration assay in predicting in vitro fertilization (IVF) success

   • B. Jane Rogers

   Editorial Pages: 209 - 211

2. The Hastings Center Klingenstein Meeting on Reproductive Technologies

   • Elynne B. Marglis
   • Alan H. DeCherney

   News and Views Pages: 212 - 214

3. Successful fertilization, embryo development, and pregnancy in human in vitro fertilization (IVF) using a chemically defined culture medium containing no protein

   • Catriona M. Caro
   • Alan Trounson

   Special Contributions Pages: 215 - 217

4. Oocyte maturation inhibitor activity in human follicular fluid: Quantitative determination in unstimulated and clomiphene citrate- and human menopausal gonadotropin-stimulated ovarian cycles

   • Sharon Winer-Sorgen
   • Joanne Brown
   • Gere S. Dizerega

   Special Contributions Pages: 218 - 223

5. Follicular aspiration using a syringe suction system may damage the zona pellucida

   • Jacques Cohen
   • Susan Avery
   • Vinay Sharma

   Special Contributions Pages: 224 - 226

6. The successful recovery and fertilization of oocytes from the pouch of Douglas

   • Phillipl Matson
   • Jeanne M. Yovich
   • John L. Yovich

   Special Contributions Pages: 227 - 231

7. Ultrastructure of the human preovulatory oocyte

   • D. Szöllösi
   • J. Mandelbaum
   • J. Cohen

   Special Contributions Pages: 232 - 242

8. Clinical study on embryo transfer after human in vitro fertilization

   • Yvon Englert
   • F. Puissant
   • F. Leroy

   Special Contributions Pages: 243 - 246

9. In vitro fertilization children: Early psychosocial development

   • David N. Mushin
   • Maria C. Barreda-Hanson
   • John C. Spensley

   Special Contributions Pages: 247 - 252

10. Developmental assessment of twenty in vitro fertilization (IVF) infants at their first birthday

    • John L. Yovich
    • Trevor S. Parry
    • Alfred A. Grauaug

    Special Contributions Pages: 253 - 257

11. The need for appropriate controls in studies on human in vitro fertilization

    • Alan O. Trounson

    Editorials Pages: 258 - 258

12. Transvesical/transuterine collection of cocytes by ultrasound

    • Suzan Lenz
    • Jens Bang

    Short Communications Pages: 259 - 260

13. Pregnancy following gamete intrafallopian transfer: A case report

    • S. Gordts

    Short Communications Pages: 260 - 261

14. Pregnancy after in vitro fertilization, cryopreservation, and embryo transfer

    • E. Siebzehrübl
    • S. Trotnow
    • T. Hünlich

    Short Communications Pages: 261 - 263

15. In vitro fertilization and embryo transfer at “Groupe Hospitalier Pitié-Salpetrière,” Paris, France

    • Danièle Vauthier
    • Gilles Lefebvre
    • Françcoise Wright

    Short Communications Pages: 263 - 264

16. In vitro fertilization program at Rush Presbyterian-St. Luke's Medical Center, Chicago, Illinois

    • Ewa Radwanska
    • Rita Basuray
    • W. Paul Dmowski

    Short Communications Pages: 264 - 267

17. Clinical results of an in vitro fertilization/embryo transfer program at Ulm University

    • K. Sterzik
    • F. Maleika
    • C. Lauritzen

    Letters to the Editors Pages: 268 - 268

18. The in vitro fertilization program at Cherry Hill, New Jersey

    • Philip J. Chan
    • Gary S. Packin
    • Daniel H. Belsky

    Letters to the Editors Pages: 268 - 269

19. Initial results with in vitro fertilization and embryo transfer at the University Central Hospital of Tampere, Finland

    • Reijo Punnonen
    • Pentti K. Heinonen
    • Klaus Teisala

    Letters to the Editors Pages: 270 - 270

20. Instrument failure-comment by manufacturer

    • Stephen J. Meredith

    Letters to the Editors Pages: 270 - 271

21. Registry

    Announcement Pages: 272 - 272

22. Announcements

    Announcement Pages: 273 - 273