Authors: Ulvik, A Evensen, ET Lien, EA Hoff, G Vollset, SE Majak, BM Ueland, PM

Citation: A. Ulvik et al., Smoking, folate and methylenetetrahydrofolate reductase status as interactive determinants of adenomatous and hyperplastic polyps of colorectum, AM J MED G, 101(3), 2001, pp. 246-254