title: [beta2 adrenergic bronchodilators in chronic asthma. Fixed use or according to necessity?].
authors.forename: A J
authors.initials: AJ
authors.lastname: Roncoroni
mesh_terms: D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage*; D002908:Chronic Disease; D006801:Humans
chemical_list: D001993:Bronchodilator Agents
vernacular_title: Broncodilatadores beta 2 adrenérgicos en asma crónico, uso fijo o según necesidad?