1. Relationship between Methylenetetrahydrofolate Reductase C677T and A1298C Genotypes and Haplotypes and Prostate Cancer Risk and Aggressiveness
   Mine S. Cicek et al, 2004, Cancer Epidemiology, Biomarkers & Prevention CrossRef
2. Phase I Clinical and Pharmacogenetic Trial of Irinotecan and Raltitrexed Administered Every 21 Days to Patients With Cancer
   James P. Stevenson et al, 2001, Journal of Clinical Oncology CrossRef