"Cancérogènes." . . "Neoplasms." . . "Berufskrankheit." . . "Krebs (Medizin)" . . "Cancer." . . "Occupational diseases." . . "Occupational Diseases." . "Carcinogens." . . . . . . . "The nature of occupational cancer a critical review of present problems"@en . . . . . "The nature of occupational cancer" . . . "The nature of occupational cancer; a critical review of present problems" . . . . . . "The nature of occupational cancer : a critical review of present problems" . "The nature of occupational cancer : a critical review of present problems"@en . . . . . . . . . . . . . "Maladies professionnelles." . .