1. The application of electron microscopy in the evaluation of two- to four-cell human embryos cultured in vitro for embryo transfer

   • Alan Trounson
   • A. H. Sathananthan

   OriginalPaper Pages: 153 - 165

2. The application of the zona-free hamster egg test for the prognosis of human in vitro fertilization

   • R. Foreman
   • J. Cohen
   • R. G. Edwards

   OriginalPaper Pages: 166 - 171

3. The limitations of in vitro fertilization from males with severe oligospermia and abnormal sperm morphology

   • John L. Yovich
   • James D. Stanger

   OriginalPaper Pages: 172 - 179

4. The occurrence of relaxin in hyperstimulated human preovulatory follicles collected in an in vitro fertilization program

   • Hannele Yki-Järvinen
   • Torsten Wahlström
   • Markku Seppäla

   OriginalPaper Pages: 180 - 182

5. The effect of protein on preimplantation mouse embryo development in vitro

   • Catriona M. Caro
   • Alan Trounson

   OriginalPaper Pages: 183 - 187

6. Morphology and X-ray microprobe analysis of spermatozoa from fertile and infertile men in in vitro fertilization

   • T. C. Appleton
   • S. B. Fishel

   OriginalPaper Pages: 188 - 203

7. In vitro fertilization and embryo transfer at North Shore University Hospital: Initial experiences

   • Richard A Bronson
   • David L. Rosenfeld
   • George W. Cooper

   Short Communications Pages: 204 - 208

8. The in vitro fertilization program in Helsinki

   • Aarne I. Koskimies
   • Anssi Tenhunen
   • Markku Seppäla

   Short Communications Pages: 208 - 209

9. Registry

   Announcement Pages: 210 - 210

10. Announcements

    Announcement Pages: 211 - 211