PubMed:: "Rectal Neoplasms" [Mesh:NoExp] OR (cancer[sb] AND ("Rectum"[Mesh] OR rectum[tiab] OR rectal*[tiab]));; Embase.com:: 'rectum tumor'/de OR 'rectum cancer'/de OR 'rectum carcinoma'/exp OR (('neoplasm'/exp OR carcinoma*:ti,ab,kw OR neoplas*:ti,ab,kw OR tumour*:ti,ab,kw OR sarcoma*:ti,ab,kw OR adenocarcin*:ti,ab,kw OR tumor*:ti,ab,kw OR cancer*:ti,ab,kw OR oncolog*:ti,ab,kw OR malignan*:ti,ab,kw OR metasta*:ti,ab,kw OR carcinogen*:ti,ab,kw OR oncogen*:ti,ab,kw OR paraneoplastic:ti,ab,kw OR plasmacytoma*:ti,ab,kw OR carcinosarcoma*:ti,ab,kw) AND ('rectum'/exp OR rectal*:ti,ab,kw OR rectum:ti,ab,kw))
