title: Targeted UV-B phototherapy: when and why to start.
authors.forename: Torello
authors.initials: T
authors.lastname: Lotti
authors.forename: Riccardo
authors.initials: R
authors.lastname: Rossi
authors.forename: Piero
authors.initials: P
authors.lastname: Campolmi
mesh_terms: D006801:Humans; D011565:Psoriasis / Q000473:pathology / Q000532:radiotherapy*; D014466:Ultraviolet Rays; D014467:Ultraviolet Therapy