[Louis Heijermans (1873-1938) and the origin of work and occupational medicine].
D049672:History, 19th Century; D049673:History, 20th Century; D009426:Netherlands; D009787:Occupational Medicine / Q000266:history*
Louis Heijermans (1873-1938) en de opkomst van de arbeids- en bedrijfsgeneeskunde.