No abstract available
MeSH terms
-
Adult
-
Dyspnea / physiopathology
-
Europe
-
History, 19th Century
-
History, 20th Century
-
Humans
-
Lung Diseases, Obstructive / physiopathology
-
Male
-
Middle Aged
-
Pneumonia, Pneumococcal / physiopathology
-
Positive-Pressure Respiration / history*
-
United States