title: Use of provocation techniques for the evaluation of drug efficacy.
mesh_terms: D000628:Aminophylline / Q000627:therapeutic use; D001249:Asthma / Q000175:diagnosis / Q000188:drug therapy*; D001985:Bronchial Provocation Tests; D001993:Bronchodilator Agents / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005280:Fenoterol / Q000627:therapeutic use; D006801:Humans; D008688:Methacholine Compounds; D012882:Skin Tests; D013223:Statistics as Topic
chemical_list: D001993:Bronchodilator Agents; D008688:Methacholine Compounds; D005280:Fenoterol; D000628:Aminophylline