title: Separation of 6-thiopurine derivatives on DEAE-sephadex columns and in the high-pressure liquid chromatograph.
mesh_terms: D001379:Azathioprine; D002852:Chromatography, Ion Exchange; D007166:Immunosuppressive Agents; D015122:Mercaptopurine; D008722:Methods; D011312:Pressure; D013056:Spectrophotometry, Ultraviolet; D013460:Sulfur Isotopes; D013866:Thioguanine
chemical_list: D007166:Immunosuppressive Agents; D013460:Sulfur Isotopes; D015122:Mercaptopurine; D013866:Thioguanine; D001379:Azathioprine