title: The IPPB trial.
mesh_terms: D000336:Aerosols; D002986:Clinical Trials as Topic; D006801:Humans; D007384:Intermittent Positive-Pressure Breathing; D011175:Positive-Pressure Respiration; D012107:Research Design; D012138:Respiratory Therapy / Q000379:methods*
chemical_list: D000336:Aerosols