A reversed phase high performance liquid chromatography approach in determining total red blood cell concentrations of 6‐thioguanine, 6‐mercaptopurine, methylthioguanine, and methylmercaptopurine in a patient receiving thiopurine therapyGary R. Erdmann, Daniel M. Canafax, Laura A. France et al.|Biomedical Chromatography|1990Cited by 67
Reversed-phase high-performance liquid chromatographic approach to determine total lymphocyte concentrations of 6-thioguanine, methylmercaptopurine and methylthioguanine in humansGary R. Erdmann, Daniel M. Canafax, Jeff C. Steury et al.|Journal of Chromatography B Biomedical Sciences and Applications|1991Cited by 20
899 Td-1211 Phase 2B Study Demonstrates Increased Bowel Movement Frequency and Constipation-Related Symptom Improvement in Patients With Opioid Induced Constipation (OIC)Ross G. Vickery, Daniel M. Canafax, Neil Singla et al.|Gastroenterology|2013Cited by 9