title: Leukocyte chemotactic factors in soluble extracts of Metastrongylus apri at different stages.
mesh_terms: D000818:Animals; D002630:Chemotactic Factors / Q000032:analysis*; D002634:Chemotaxis, Leukocyte; D004804:Eosinophils; D005260:Female; D006168:Guinea Pigs; D007814:Larva / Q000032:analysis; D008264:Macrophages; D008681:Metastrongyloidea / Q000032:analysis*; D009504:Neutrophils; D010063:Ovum / Q000032:analysis
chemical_list: D002630:Chemotactic Factors