6Rao SS.Constipation:evaluation and treatment. Gastroenterol Clin North Am,2003,32(2): 659- 683.
7Sarli L,Costi R,Sarli D,et al.Pilot study of subtotal colectomy with antiperistalstic cecoproctostomy for the treatment of chronic slow-transit constipation.Dis Colon Rectum,2001,44:1514-1520.
9Agachan F, Pfeifer J, Steven P, et al. Defecogcaphy and proctography. Dis Colon Rectum, 1996,339 : 899-905.
10Crispino P, Habib FI, Badiali D, et al. Colorectal motor and sensitivity features in patients affected by ulcerative proctitis with constipation: a radiologieal and manometric controlled study. Inflamm Bowel Dis, 2006,12:712-718.