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BMC Public Health > 2019 > 19 > 1 > 1-14
BMC Geriatrics > 2019 > 19 > 1 > 1-9
Social Science & Medicine > 2015 > 128 > Complete > 178-187
Social Science & Medicine > 2012 > 74 > 6 > 930-939
Journal of Adolescent Health > 2006 > 38 > 5 > 556-559
Annals of Epidemiology > 2006 > 16 > 5 > 406-408
Social Science & Medicine > 2006 > 62 > 1 > 165-175
Social Science & Medicine > 2002 > 55 > 8 > 1373-1383