2 years experience of photopatch testing in Singapore

Patients and Methods This was a retrospective study of patients photopatch tested at our Contact and Occupational Dermatoses Clinic between April I99I and March I993. 62 patients who had a history and clinical features suggestive of photosensitivity were tested with our photopatch series (Table I). The photoallergens were applied on the upper back in duplicate, one for UVA irradiation and the other as control, using Finn Chambers on Scanpor tape. After

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