TY - CHAP M1 - Book, Section TI - Endometriosis A1 - Doherty, Gerard M. Y1 - 2010 N1 - T2 - Quick Answers Surgery AB - • Dysmenorrhea• Constant aching lower abdominal pain, beginning 2-7 days before the onset of menses, and increasing in severity until menstrual flow subsides• Clinical diagnosis is presumptive and must be confirmed in severe cases with laparoscopy or laparotomy SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/28 UR - accesssurgery.mhmedical.com/content.aspx?aid=58109898 ER -