1. Mercaptopurine pharmacogenetics: monogenic inheritance of erythrocyte thiopurine methyltransferase activity;Weinshilboum, R.M.; Sladek, S.L.;Am J Hum Genet,1980
2. Genetic variation in response to 6-mercaptopurine for childhood acute lymphoblastic leukaemia;Lennard, L.; Lilleyman, J.S.; Van Loon, J.A.; Weinshilboum, R.M.;Lancet,1990
3. 6Mercaptopurine: apparent lack of relation between prescribed dose and biological effect in children with leukaemia;Herber, S.; Lennard, L.; Lilleyman, J.S.; Maddocks, J.L.;BrJ Cancer,1982
4. Variable 6-mercaptopurine metabolism and treatment outcome in childhood lymphoblastic leukaemia;Lennard, L.; Lilleyman, J.S.;J Clin Oncol,1989
5. Interaction of allopurinol with 6-mercaptopurine and azathioprine;Brooks, R.J.; Dorr, R.T.; Durie, B.G.M.;Biomedicine,1982