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APA Citation
Sie, K. K. Y., Medline, A., van Weel, J., Sohn, K., Choi, S., Croxford, R., & Kim, Y. (2011). effect of maternal and postweaning folic acid supplementation on colorectal cancer risk in the offspring. Gut, 60(12), 1687–1694. http://access.bl.uk/ark:/81055/vdc_100136715307.0x00004e