Prevalence of asthma among the adult general population of five Middle Eastern countries: results of the SNAPSHOT program oleh Hesham Tarraf, Omur Aydin, Dilsad Mungan, Mohammad Albader, Bassam Mahboub, Adam Doble, Aaicha Lahlou, Luqman Tariq, Fayaz Aziz, Abdelkader El Hasnaoui