Folk medical inhalants in respiratory disorders.
D002170:Canada; D005060:Europe; D005495:Folklore; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D012138:Respiratory Therapy / Q000266:history*; D012140:Respiratory Tract Diseases / Q000628:therapy*; D006113:United Kingdom; D014481:United States