1. Clinical practice guidelines for the treatment of hemorrhoid disease;Abramowitz;Gastroenterol Clin Biol,2001
2. Clinical practice guidelines for the management of patients with rectal bleeding;Alonso;Gastroenterol Hepatol,2002
3. Phlebotonics for haemorrhoids;Alonso;The Cochrane Library,2003
4. Office evaluation and treatment of hemorrhoids. Office evaluation and treatment of hemorrhoids;Alonso-Coello;J Fam Pract,2003
5. Hemorrhoidal disease;Beck,1998