Industrial medical services for small industries. 1943.
Welt
L G
LG
D049673:History, 20th Century; D016272:Occupational Health / Q000266:history; D009786:Occupational Health Services / Q000191:economics / Q000266:history* / Q000458:organization & administration / Q000639:trends; D014481:United States; D014483:United States Dept. of Health and Human Services / Q000266:history