The new edition of this book has grown by more than 50% from the prior edition published five years ago, no doubt a direct consequence of the expansion of knowledge on this subject in that time. The subject matter is subdivided into five logical sections: reproductive physiology, clinical endocrinology, contraception, infertility, and clinical assays.
The first section outlines selectively the explosion of information in many relatively new fields. Thus, the very first two chapters are among the most difficult in the book but lay the necessary groundwork for a complete understanding of later events. These two chapters, "Molecular Biology for Clinicians" and "Hormone Biosynthesis, Metabolism and Mechanism of Action," are full of up-to-date information and are very complete summaries of recent and current research. Regulation of the menstrual cycle becomes more and more complex with each edition, and, here too, the results of a great deal of recent research are