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Craig P, Katikireddi SV, Leyland A, Popham F.Craig P, et al.Annu Rev Public Health. 2017 Mar 20;38:39-56. doi: 10.1146/annurev-publhealth-031816-044327. Epub 2017 Jan 11.Annu Rev Public Health. 2017.PMID: 28125392Free PMC article.Review.
Campbell M, Katikireddi SV, Hoffmann T, Armstrong R, Waters E, Craig P.Campbell M, et al. Among authors: craig p.BMJ. 2018 May 16;361:k1079. doi: 10.1136/bmj.k1079.BMJ. 2018.PMID: 29769210Free PMC article.
Campbell M, Escobar O, Fenton C, Craig P.Campbell M, et al. Among authors: craig p.BMC Public Health. 2018 Jul 3;18(1):822. doi: 10.1186/s12889-018-5735-8.BMC Public Health. 2018.PMID: 29970044Free PMC article.