(Gray et.al. 2004)

 (NCC-PC Referral Guidelines for Suspected Cancer  in Adults and Children)

(MedlinePlus Medical Encyclopedia)

(Caffarelli et.al. 2000)

(Galankis E 2002)

(Tasher, Somekh and Dalal 2006)

(Rome II Criteria)

(Longstreth et.al. Rome III Criteria)

(Marion et.al. 2004)

(Clouse RE 2006 Rome III Criteria)

(Rasquin et.al. 2006 Rome III criteria)

(Andersson 2004)

(Fairbanks K 2004 at ClevelandClinic)

(Arulkumaran 2004)

(WHO 2003)

(AmericanAcademy of Pediatrics 2005)

(CDC – Sexually Transmitted Diseases Treatment Guidelines 2006)

(Mahomed 2006)

(Lack 2008)

(Meurer and Bower 2002)

(Buresh and Graber 2006)