Chronic Actinic Dermatitis: Two Patients with Successful Management using Narrowband Ultraviolet B Phototherapy with Systemic SteroidsAida Khaled, Nadia Kerkeni, Dora Baccouche, Faten Zeglaoui, Mohamed Ridha Kamoun et Becima FazaaTherapie, 66 5 (2011) 453-457DOI: https://doi.org/10.2515/therapie/2011052