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L'augmentation actuelle de la prevalence de l'asthme peut etre en partie expliquee par des facteurs d'environnement. La pollution exterieure ne cree pas un asthme mais peut l'aggraver lorsqu'il est deja installe. Le role de la pollution interieure et surtout de l'exposition au tabac est certainement beaucoup plus determinant. Le tabagisme passif peut induire et aggraver un asthme et son retentissement...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.