title: Marihuana and tidal volume.
mesh_terms: D000328:Adult; D001249:Asthma / Q000188:drug therapy; D002188:Cannabis / Q000009:adverse effects* / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D006801:Humans; D008297:Male; D008517:Phytotherapy; D010919:Placebos; D012119:Respiration / Q000187:drug effects*; D012129:Respiratory Function Tests; D019966:Substance-Related Disorders
chemical_list: D010919:Placebos