Clinical experimentation with an antitussive preparation according to a new technic
D000996:Antitussive Agents; D003371:Cough / Q000628:therapy*; D036262:Empirical Research; D006801:Humans; D009281:Naphthalenes / Q000628:therapy*; D012107:Research Design
D000996:Antitussive Agents; D009281:Naphthalenes
COUGH/therapy; NAPHTHALENES/therapy