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Chronic urticaria as the first sign of sarcoidosis
María Socorro Pérez Bustamante, Jose Barbarroja-Escudero, Darío Antolín-Amérigo, María José Sánchez-González, Mercedes Rodríguez-Rodríguez and Melchor Alvarez-Mon
Canadian Family Physician June 2014; 60 (6) 546-547;