title: Purification of human alpha-1-fetoprotein by ammonium sulphate gradient solubilization: development of reagents for radioimmunoassay.
mesh_terms: D000645:Ammonium Sulfate; D006528:Carcinoma, Hepatocellular / Q000276:immunology; D011232:Chemical Precipitation; D002845:Chromatography; D005312:Fetal Blood; D006801:Humans; D008113:Liver Neoplasms; D011863:Radioimmunoassay / Q000379:methods; D000509:alpha-Fetoproteins / Q000302:isolation & purification*
chemical_list: D000509:alpha-Fetoproteins; D000645:Ammonium Sulfate