Khafagy, Naziha Hafez Comparative study of systemic psoralen and ultraviolet A and narrowband ultraviolet B in treatment of chronic urticaria. [electronic resource] - Photodermatology, photoimmunology & photomedicine Feb 2013 - 12-7 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 1600-0781 Standard No.: 10.1111/phpp.12008 doi Subjects--Topical Terms: AdolescentAdultChronic DiseaseFemaleFicusin--administration & dosageHumansMaleMiddle AgedPUVA TherapyPhotosensitizing Agents--administration & dosageUltraviolet RaysUrticaria--drug therapy