Crossen HS, crossen JR: Operative gynecology, 796, London Kimpton, 1947
Naga M, et al: Endoscopic removal of retained surgical gauze.endoscopy.26: 755, 1994
Mulayim B, Mulayim S, Celik NY: A lost intrauterine device. Guess where we found it and how it happened? Eur J Contracept Reprod Health Care, 11(1): 47-9, 2006