1. Pneumoperitoneum after rough sexual intercourse;Johnson;Am Surg,2002
2. Sexual activity as cause for non-surgical pneumoperitoneum;Jacobs;JSLS,2000
3. Unusual causes of spontaneous pneumoperitoneum;Madura;Surg Gynecol Obstet,1983
4. Chronic aseptic spontaneous pneumoperitoneum without a serious complication in 8 years;DeGinder;Arch Surg,1995
5. Asymptomatic pneumoperitoneum diagnostic and therapeutic dilemma;Mezghebe;Am Surg,1994