1. Bodenhamer, W.: Diseases of the Rectum and Anus. Cincinnati, A. G. Sparhawk, 1847, p. 117.
2. Cooper, A. and F. S. Edwards: Diseases of the Rectum and Anus. Philadelphia, P. Blakiston’s Sons & Co., 1892, p. 260.
3. Graham, R.: Operative repair of massive rectal prolapse. Ann. Surg.115: 1007, 1942.
4. Jeannel, M.: Du Prolapsus du Rectum. Clin. fac. med.2: 101, 1896.
5. Moschovitz, A. V.: The pathogenesis, anatomy and care of prolapse of rectum. Surg., Gynec. & Obst.15: 7, 1912.