title: Loss of activity during fractionation of some human spermagglutinating sera.
mesh_terms: D000371:Agglutination; D000372:Agglutination Tests; D003956:Dialysis; D005374:Filtration; D006801:Humans; D007106:Immune Sera / Q000032:analysis*; D007136:Immunoglobulins / Q000032:analysis; D008297:Male; D013094:Spermatozoa / Q000276:immunology*
chemical_list: D007106:Immune Sera; D007136:Immunoglobulins