1. Allegra CJ, Fine RL, Drake JC, Chabner BA. The effect of methotrexate on intracellular folate pools in human MCF-7 breast cancer cells: evidence of direct inhibition of purine synthesis. J Biol Chem. 1986;261:6478–85.
2. Baram J, Allegra CJ, Fine RL, Chabner BA. Effect of methotrexate pools in purified myeloid precursor cells from normal human bone marrow. J Clin Invest. 1987;79:692–7.
3. Hosseini M. Role of polymorphism of methyltetrahydrofolatehomocysteine methyltransferase (MTR) A2756G and breast cancer risk. Pol J Pathol. 2013;64(3):191e195.
4. Senses KM, Gonen M, Barutcu AR, et al. Cancer-testis gene expression is associated with the methylenetetrahydrofolate reductase 677 C>T polymorphism in non-small cell lung carcinoma. BMC Med Genet. 2013;14:97.
5. Shupak JL, Grieco AJ, Epstein AM, Sansariq C, Synderman SE. Azaribine, homocysteine and thrombosis. Arch Dermatol. 1977;113:1301–2.