436 / | HD | CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING |
536 | DF | INVOLVING IMMUNE COMPLEX FORMED IN LIQUID PHASE {2} |
538 | DF | .~ Separation of immune complex from unbound antigen or antibody {3} |
539 | DF | .~.~ Involving precipitating reagent {1} |
540 | .~.~.~ Double or second antibody |