Introduction Acknowledgments How to Contribute SECTION Ⅰ:HOW TO SUCCEED IN THE OBSTETRICS & GYNECOSOGY CLERKSHIP SECTION Ⅱ:HIGH-YLELD FACTS IN OBSTETRICS Normal Anatomy Diagnosis of Pregnancy Physiology of Pregnancy Antepartum Intrapartum Postpartum Medical Conditions and Infections in Pregnancy Complications of Pregnancy Spontaneous Abortion, Ectopic Pregnancy, and Fetal Death Induced Abortion SECTION Ⅲ:HIGH-YIELD FACTS IN GYNECOLOGY Contraception and Sterilization Infertility Menstruation Abnormal Uterine Bleeding Pelvic Pain Endometriosis and Adenomyosis Pelvic Masses Cervical Dysplasia Cervical Cancer Endometrial Cancer Ovarian Cancer Vulvar Dysplasia and Cancer Gestational Trophoblastic Neoplasia Sexually Transmitted Diseases and Vaginitis Vulvar Disorders Menopause Pelvic Relaxation Women's Health SECTLON Ⅳ:CLASSIFIED Awards and Opportunities Web Sites of Interest Index