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Welsh JA, Braun H, Brown N, Um C, Ehret K, Figueroa J, Boyd Barr D.Welsh JA, et al.Public Health Nutr. 2019 Nov;22(16):2972-2980. doi: 10.1017/S136898001900106X. Epub 2019 Jun 26.Public Health Nutr. 2019.PMID: 31238996Free PMC article.