1. Genetic engineering: Moral aspects and control of practice

   • Vered H. Eisenberg
   • Joseph G. Schenker

   News And Views Pages: 297 - 316

2. Pregnancy rates after intracytoplasmic sperm injection in relation to sperm recovery techniques

   • P. E. Egbase
   • M. Al-Sharhan
   • J. G. Grudzinskas

   Clinical Assisted Reproduction Pages: 317 - 320

3. Prognostic value of objective semen parameters in an in vitro fertilization program

   • Christiane Wittemer
   • Stéphanie Warter
   • Pierre Dellenbach

   Clinical Assisted Reproduction Pages: 321 - 327

4. Gonadotropins and glucocorticoid therapy for “low responders”—A controlled study

   • D. Bider
   • J. Blankstein
   • I. Tur-Kaspa

   Clinical Assisted Reproduction Pages: 328 - 331

5. Analysis of the human zona pellucida during culture: Correlation with diagnosis and the preovulatory hormonal environment

   • J. Ricardo Loret de Mola
   • William T. Garside
   • Susan Heyner

   Clinical Assisted Reproduction Pages: 332 - 336

6. Treatment variables in relation to oocyte maturation: Lessons from a clinical micromanipulation-assisted in vitro fertilization program

   • Ori M. Avrech
   • Gil A. Goldman
   • Benjamin Fisch

   Clinical Assisted Reproduction Pages: 337 - 342

7. Late manifestation of pelvic abscess following oocyte retrieval, for in vitro fertilization, in patients with severe endometriosis and ovarian endometriomata

   • Johnny S. Younis
   • Yossi Ezra
   • Gonen Ohel

   Clinical Assisted Reproduction Pages: 343 - 346

8. Is there really a decrease in sperm parameters among healthy young men? A survey of sperm donations during 15 years

   • Abraham Benshushan
   • Orly Shoshani
   • Aby Lewin

   Andrology Pages: 347 - 353

9. Reasons for rejecting potential donors from a sperm bank program

   • R. S. Sidhu
   • R. K. Sharma
   • A. Agarwal

   Andrology Pages: 354 - 360

10. In vitro maturation of human testicular sperm in patients with azoospermia

    • Jianjun Zhu
    • Godwin I. Meniru
    • Ian Craft

    Short Communication Pages: 361 - 363

11. Response to Eisenberg and Schenker [The duties of ethical committees applied to human reproduction (J assist reprod genet 1996;13:689–697)]

    • Eurica Califorrniaa

    Letters To The Editor Pages: 364 - 364

12. Response to Californiaa

    • Joseph G. Schenker

    Letters To The Editor Pages: 365 - 365

13. Response to Meldrum and Hamilton [Monoamniotic twinning and zone Manipulation: A survey of U.S. IVF centers correlating zona manipulation procedures and high-risk twinning frequency (J assist reprod genet 1996;13:748)]

    • R. Nathan Slotnick

    Letters To The Editor Pages: 365 - 365

14. Announcements

    Announcement Pages: 366 - 367