title: Why a skin biopsy?
authors.forename: E R
authors.initials: ER
authors.lastname: Farmer
mesh_terms: D001706:Biopsy; D016026:Bone Marrow Transplantation / Q000473:pathology*; D006086:Graft vs Host Disease / Q000473:pathology*; D006801:Humans; D012680:Sensitivity and Specificity; D012867:Skin / Q000473:pathology*