title: Evaluation of biological activity of TFX (Polfa) a product obtained from calf thymus.
mesh_terms: D000818:Animals; D001681:Biological Assay; D002417:Cattle; D006087:Graft vs Host Reaction / Q000187:drug effects*; D051379:Mice; D010455:Peptides / Q000494:pharmacology*; D013154:Spleen / Q000276:immunology; D013949:Thymus Extracts / Q000494:pharmacology*; D013950:Thymus Gland / Q000502:physiology*
chemical_list: D010455:Peptides; D013949:Thymus Extracts