[RESEARCH ON SEVERAL DIGESTIVE DISEASES IN AN OCCUPATIONAL LEAD-POISONING ENVIRONMENT (ULCER DISEASE AND EPIDEMIC HEPATITIS)].
D004066:Digestive System Diseases; D005762:Gastroenterology; D006505:Hepatitis; D006506:Hepatitis A; D006801:Humans; D007855:Lead Poisoning; D009784:Occupational Diseases; D010437:Peptic Ulcer; D014456:Ulcer
GASTROENTEROLOGY; HEPATITIS, INFECTIOUS; LEAD POISONING; OCCUPATIONAL DISEASES; PEPTIC ULCER
CERCET ARI PRIVIND UNELE BOLI DIGESTIVE  IN MEDIUL TOXIC SATURNIN PROFESIONAL (BOALA ULCEROAS A  SI HEPATITA CRONIC A)