Ribeiro, CNogueira, FGuerreiro, SCLeão, P2015-04-232015-04-232015BMJ Case Rep. 2015 Apr 16;2015. pii: bcr2015209464http://hdl.handle.net/10400.23/874engEndometriosisDoenças do CólonHemorragia GastrointestinalDeep infiltrating endometriosis of the colon causing cyclic bleedingjournal article