the methods of serological analysis have been used to study the immunochemical ( antibody and antigenic ) properties and hemosensitizing activity of a number of immunoglobulin sensitins : immune serum , its fractions ( globulin , 7s , 19s , gamma-globulin ) , as well as pure antibodies and their f ( ab ) 2-and fab-fragments .
C0020960
immune serum
C0003241
antibodies