title: Purification of a horse placental inhibitor to hemagglutination by H-1 or HB viruses.
mesh_terms: D000818:Animals; D011232:Chemical Precipitation; D002850:Chromatography, Gel; D004267:DNA Viruses; D003864:Depression, Chemical; D004589:Electrophoresis, Disc; D006384:Hemagglutination / Q000187:drug effects*; D006385:Hemagglutination Inhibition Tests; D006736:Horses; D007616:Kaolin; D008259:Macroglobulins / Q000032:analysis*; D009439:Neuraminidase; D010206:Papain; D010504:Periodic Acid; D010924:Placental Extracts / Q000032:analysis*
chemical_list: D008259:Macroglobulins; D010924:Placental Extracts; D010504:Periodic Acid; D007616:Kaolin; D009439:Neuraminidase; D010206:Papain