title: Isolation of the leukocyte chemotactic factors in the extract of adult Metastrongylus apri.
mesh_terms: D000818:Animals; D002630:Chemotactic Factors / Q000302:isolation & purification*; D002634:Chemotaxis, Leukocyte; D002850:Chromatography, Gel; D006168:Guinea Pigs; D006863:Hydrogen-Ion Concentration; D007525:Isoelectric Focusing; D008681:Metastrongyloidea / Q000032:analysis*
chemical_list: D002630:Chemotactic Factors