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Greenland S, Pearce N.Greenland S, et al. Among authors: pearce n.Annu Rev Public Health. 2015 Mar 18;36:89-108. doi: 10.1146/annurev-publhealth-031914-122559.Annu Rev Public Health. 2015.PMID: 25785886Review.
Corbin M, Haslett S, Pearce N, Maule M, Greenland S.Corbin M, et al. Among authors: pearce n.Int J Epidemiol. 2017 Jun 1;46(3):1063-1072. doi: 10.1093/ije/dyx027.Int J Epidemiol. 2017.PMID: 28338966Free article.