1. The preimplantation genetic diagnosis of genetic diseases

   • Yury Verlinsky
   • Eugene Pergament
   • Charles Strom

   Review Pages: 1 - 5

2. New techniques in fertilization: Intravaginal culture and microvolume straw

   • Claude Ranoux
   • Machelle M. Seibel

   Review Pages: 6 - 8

3. In vitro fertilization (IVF) of mouse ova in HEPES-buffered culture media

   • Barry R. Behr
   • C. J. Stratton
   • G. Sher

   Special Contributions Pages: 9 - 15

4. The chromosomal complements of cleaved human embryos resulting from in vitro fertilization

   • Sai MA
   • Dagmar K. Kalousek
   • Young S. Moon

   Special Contributions Pages: 16 - 21

5. Effect of human follicular fluids from pregnant and nonpregnant patients on the development of mouse zygotes in vitro

   • David W. Richards
   • Patrick Quinn
   • Richard P. Marrs

   Special Contributions Pages: 22 - 27

6. The use of an alginic acid matrix to support in vitro development of isolated murine blastomeres

   • Nancy L. Eaton
   • Glen P. Niemeyer
   • Michael C. Doody

   Special Contributions Pages: 28 - 32

7. Recognition of paternal pronuclei in human zygotes

   • Sharon Wiker
   • Henry Malter
   • Jacques Cohen

   Special Contributions Pages: 33 - 37

8. The relationship between sperm parameters and fertilizing capacity in vitro: A predictive role for swim-up migration

   • Benjamin Fisch
   • Ruth Kaplan Kraicer
   • Yona Tadir

   Special Contributions Pages: 38 - 44

9. In vitro fertilization-embryo transfer in three women with ovarian failure

   • Jerome H. Check
   • Kosrow Nowroozi
   • Gail Goldsmith

   Special Contributions Pages: 45 - 46

10. Optimization and simplification of culture conditions in human in vitro fertilization (IVF) and preembryo replacement by serum-free media

    • Nicolai Holst
    • Kjell Bertheussen
    • Hans Ingolf Nielsen

    Special Contributions Pages: 47 - 53

11. Peripheral blood platelet counts in the management of very early pregnancy failure following gamete intrafallopian transfer

    • Janet Evans
    • Linda Gregory
    • Sheila Walker

    Special Contributions Pages: 54 - 57

12. Combined electroejaculation and in vitro fertilization in the evaluation and treatment of anejaculatory infertility

    • John F. Randolph Jr.
    • Dana A. Ohl
    • Alan C. Menge

    Special Contributions Pages: 58 - 62

13. Down syndrome (trisomy 21) in a pregnancy after intratubal embryo transfer (IVF/IT-ET)

    • Wolfgang Würfel
    • Gottfried Krüsmann
    • Wilhelm Krüsmann san

    Letter to the Editors Pages: 63 - 64

14. Announcements

    Announcement Pages: 65 - 65