[COMMENTS BY AN EPIDEMIOLOGIST ON THE PROBLEM OF EVALUATING INFECTIOUS OCCUPATIONAL DISEASES].
D003140:Communicable Disease Control; D003141:Communicable Diseases; D003604:Czechoslovakia; D004813:Epidemiology; D006801:Humans; D009784:Occupational Diseases
COMMUNICABLE DISEASE CONTROL; CZECHOSLOVAKIA; EPIDEMIOLOGY; OCCUPATIONAL DISEASES
POZN'AMKY EPIDEMIOLOGA K OT'AZCE POSUZOV'ANI INFEK CN'ICH NEMOC'I Z POVOL'ANI.