Hanane Asri1, Adil Zegmout2, Ahmed Abid2. 1. Pulmonology Department, Mohammed V Military University Hospital, Rabat, Morocco, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco. Electronic address: asri_hanane@hotmail.fr. 2. Pulmonology Department, Mohammed V Military University Hospital, Rabat, Morocco, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat, Morocco.