title: A case of false-negative monochromator phototesting in a patient with chronic actinic dermatitis taking prednisolone.
authors.forename: J
authors.initials: J
authors.lastname: Ferguson
authors.forename: S H
authors.initials: SH
authors.lastname: Ibbotson
mesh_terms: D000369:Aged, 80 and over; D000893:Anti-Inflammatory Agents; D000075202:Contraindications; D005188:False Negative Reactions; D006801:Humans; D008027:Light; D008297:Male; D010787:Photosensitivity Disorders / Q000188:drug therapy*; D011239:Prednisolone; D012882:Skin Tests / Q000592:standards
chemical_list: D000893:Anti-Inflammatory Agents; D011239:Prednisolone