RAJA, Mokkaisamy Jegadeesh; KAVITHA, Jegadeesh Raja; KUMAR, Kothamasu Pavan; SIVAKUMAR, Thangavel. Simultaneous determination of azathioprine and its metabolite 6-mercaptopurine in human plasma using solid phase extraction-evaporation and liquid chromatography–positive electrospray tandem mass spectrometry. International Current Pharmaceutical Journal, [S. l.], v. 1, n. 11, p. 342–352, 2012. DOI: 10.3329/icpj.v1i11.12059. Disponível em: https://www.banglajol.info/index.php/ICPJ/article/view/12059. Acesso em: 24 nov. 2025.