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Addiction Science & Clinical Practice > 2019 > 14 > 1 > 1-9
Digestive Diseases and Sciences > 2016 > 61 > 9 > 2496-2504
Digestive Diseases and Sciences > 2011 > 56 > 12 > 3471-3487
Maternal and Child Health Journal > 2006 > 10 > 5 > 443-449