the authors carried out a comparative study of morphological changes in the liver of guinea-pigs in various times following intraperitoneal administration of the serum taken from a patient with infectious hepatitis ( 1st group ) , administration of the serum in combination with the urine ( 2nd group ) , administration of the serum in combination with the patient 's duodenal juice ( 3rd group ) , and administration of the serum in combination with a hepatic antigen prepared of the liver of a healthy guinea-pig ( 4th group ) .
C0019159
infectious hepatitis
C0023884
liver