1Sammarco G,Ferrari F,Carpino A,et al.PPH vs Milligan-Morgan:early and late complications in the treatment of haemorrhoidal disease with circumferential prolapse[J].Ann Ital Chir,2013,26(2):312-313.
2Giuratrabocchetta S,Pecorella G,Stazi A,et al.Safety and short-term effectiveness of EEA stapler vs PPH stapler in the treatment of degreeⅢhaemorrhoids:prospective ran-domized controlled trial[J].Colorectal Dis,2013,15(3):354-358.
3Butterworth JW,Peravali R,Anwar R,et al.A four-year retmspective study and review of selection criteria and post-operative complications of stapled haemorrhoidopexy[J].Tech Colopmctol,2012,16(5):369-372.