title: Streptolysin inhibitory factor in pollen.
mesh_terms: D000989:Antistreptolysin / Q000032:analysis / Q000302:isolation & purification*; D010936:Plant Extracts / Q000032:analysis; D011058:Pollen / Q000032:analysis*
chemical_list: D010936:Plant Extracts; D000989:Antistreptolysin