Born-Digital or AnalogAnalogTranscriptRespiration, artificial 1. First used in Denver. News, Aug. 13, 1937. p. 1 2. Mrs, H. H. Tammen places rush order for iron lung to save Denver lives. Post. Sept. 1, 1937, p. 1 3. Citizens give generously to buy city new respirator. News, Sept. 2, 1937. p. 1CollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng
