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Environmental Health and Preventive Medicine > 2019 > 24 > 1 > 1-8
BMC Family Practice > 2016 > 17 > 1 > 1-10
Digestive Diseases and Sciences > 2011 > 56 > 10 > 2857-2864
Social Psychiatry and Psychiatric Epidemiology > 2009 > 44 > 9 > 703-709
International Journal of Public Health > 2003 > 48 > 4 > 252-256