title: Augmentation of oral methoxsalen-photochemotherapy with an oral retinoic acid derivative.
mesh_terms: D004307:Dose-Response Relationship, Radiation; D004359:Drug Therapy, Combination; D005500:Follow-Up Studies; D006801:Humans; D008730:Methoxsalen / Q000009:adverse effects / Q000627:therapeutic use*; D010778:Photochemotherapy; D011565:Psoriasis / Q000473:pathology / Q000628:therapy*; D012867:Skin / Q000473:pathology; D014212:Tretinoin / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000627:therapeutic use; D014467:Ultraviolet Therapy; D014801:Vitamin A / Q000031:analogs & derivatives*
chemical_list: D014801:Vitamin A; D014212:Tretinoin; D008730:Methoxsalen