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Frohnhofen H, Schlitzer J, Stieglitz S; im Namen der AG Pneumologische Altersmedizin der Deutschen Gesellschaft für Pneumologie und der Deutschen Gesellschaft für Geriatrie (DGG).Frohnhofen H, et al.Z Gerontol Geriatr. 2022 Nov;55(7):603-612. doi: 10.1007/s00391-022-02070-2. Epub 2022 Sep 15.Z Gerontol Geriatr. 2022.PMID: 36104461German.