This text is a compilation of approximately 70 state-of-the-art lectures given by international authorities in basic science and clinical investigation in reproductive medicine. The result is an excellent blending of contemporary, factual information most specifically focused on three categories - Reviews, Practice and Research. Articles from the Review section range from updates on current investigation in polycystic ovarian disease (PCOD), to microlaparoscopy technology for tubal factor infertility, and legal and ethical considerations of assisted reproductive technology. Articles in the Practice section include the latest clinical studies in ovulation induction regimens, the most effective management of the different stages of endometriosis, and the most current recommendations for the management of menopause. Articles in the Research sections report on a wide variety of investigation which include: research on the role of glycodelins with immunosuppressive properties in implantation and placentation, reports on the rapid progress in defining genes on the Y chromosome and the implications of their deletion on male infertility, and studies increasing our understanding of androgen receptor structure and function. This book, derived from the proceedings of the XVI World Congress on Fertility and Sterility, will be a valuable tool to professionals who are interested in the advances in reproductive medicine, basic science breakthroughs and application of clinical research to the management of infertile patients.