Race/ethnicity and the risk of childhood leukaemia: a case–control study in California
Sona Oksuzyan, Catherine M Crespi, Myles Cockburn, Gabor Mezei, Ximena Vergara, Leeka Kheifets
J Epidemiol Community Health Aug 2015, 69 (8) 795-802; DOI: 10.1136/jech-2014-204975