“…In particular, the complement fixation technique has made a valuable contribution to the analysis of nuclear antibodies (13,18,38,61,63,64). Other methods have also been used, e. g. the Ouchterlony technique (18,63,64,69), the agglutination technique using sensitized tanned red cells or polysterene particles (14,30,48,59), the antigammaglobulin-consumption test (45,57,58,60), the mixed haem-absorption 309 technique (23) and cutaneous anaphylaxis (19).…”