The prevalence of the methylenetetrahydrofolate reductase 677>T polymorphism in the Sri Lankan population. 119th Anniversary Scientific Sessions of the Sri Lanka Medical Association. March 22-25, 2006, Colombo, Sri Lanka. (Abstracted in Ceylon Medical Journal 2006,51(Suppl1): 8-9) This paper was awarded the S. E. Seneviratne Prize.