title: Cautionary note on using rectosigmoid biopsies to diagnose graft-versus-host disease: necessity of ruling out cytomegalovirus colitis.
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Kakugawa
authors.forename: Takahiro
authors.initials: T
authors.lastname: Fukuda
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Saito
mesh_terms: D001706:Biopsy; D003092:Colitis / Q000473:pathology* / Q000821:virology; D012809:Colon, Sigmoid / Q000473:pathology* / Q000821:virology; D003586:Cytomegalovirus Infections / Q000473:pathology*; D006086:Graft vs Host Disease / Q000175:diagnosis*; D006801:Humans; D012007:Rectum / Q000473:pathology* / Q000821:virology