Retrospectroscope: man-cans.
D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007103:Immobilization / Q000295:instrumentation; D008171:Lung Diseases / Q000175:diagnosis / Q000628:therapy; D008176:Lung Volume Measurements / Q000266:history*; D012151:Resuscitation / Q000295:instrumentation; D013147:Spirometry / Q000295:instrumentation; D013990:Tidal Volume / Q000295:instrumentation; D012122:Ventilators, Mechanical / Q000266:history*