title: The journal 150 years ago. March 1849.
mesh_terms: D049672:History, 19th Century; D006801:Humans; D008145:Louisiana; D009422:Nervous System Diseases / Q000266:history* / Q000628:therapy; D010506:Periodicals as Topic / Q000266:history; D012140:Respiratory Tract Diseases / Q000266:history* / Q000628:therapy