Tanyıldız HG, Yeşil Ş, Bozkurt C, et al. Are the methylenetetrahydrofolate reductase 1298 and 677 gene polymorphisms related to optic glioma and hamartoma risk in neurofibromatosis type 1 patients?. Turk J Pediatr 2016; 58: 152-158. https://doi.org/10.24953/turkjped.2016.02.005