2Grucela A, Salinas H, Khaitov S, et al. Prospective analysis of clini- cian accuracy in the diagnosis of benign anal pathology: comparison across specialties and years of experience [ J ] . Dis Colon Rectum, 2010, 53 (1):47-52.
3Joyce EA, Kavanagh DO, OConnell PR et al. Massive intra- abdominalhaemorrhage following stapled haemorrhoidopexy [ J ] . Int J Colorectal Dis, 2012, 27 (5) : 679 -680.
4Keller JJ, Lin HC. Haemorrhoids are associated with erectile dysfunc- tion: a population- based study [J] . Int J Androl, 2012, 35 (6) : 867 - 872.
