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European Journal of Epidemiology > 2019 > 34 > 8 > 753-763
Current Gastroenterology Reports > 2011 > 13 > 5 > 449-457
European Journal of Epidemiology > 2019 > 34 > 8 > 753-763
Current Gastroenterology Reports > 2011 > 13 > 5 > 449-457