title: [Enkephalin metabolism in human serum--the measurement of Leu-enkephalin-like substance in human serum].
mesh_terms: D002851:Chromatography, High Pressure Liquid; D003956:Dialysis; D004743:Enkephalin, Leucine / Q000097:blood*; D006801:Humans; D011863:Radioimmunoassay
chemical_list: D004743:Enkephalin, Leucine