title: Nyctotheroides puytoraci: stimulation of encystment in toads, Bufo regularis, injected with rheumatoid arthritis patients' urine.
mesh_terms: D000818:Animals; D001172:Arthritis, Rheumatoid / Q000652:urine*; D002025:Bufonidae / Q000469:parasitology*; D016798:Ciliophora / Q000502:physiology*; D006801:Humans; D011736:Pyridoxine / Q000494:pharmacology; D014364:Tryptophan / Q000378:metabolism / Q000494:pharmacology
chemical_list: D014364:Tryptophan; D011736:Pyridoxine