Document Type : Research Articles
Authors
1 Division of Preventive Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
2 Instituto de Gastroenterologia Boliviano-Japones, La Paz, Bolivia.
3 Sotero del Rio Hospital, Santiago, Chile.
4 Faculty of Medical Technology, Niigata University of Health and Welfare, Niigata, Japan.
5 Faculty of Health and Medical Sciences, Hokuriku University, Kanazawa, Ishikawa, Japan.
6 Faculty of Health Sciences, Niigata University of Health and Welfare, Niigata, Japan.
Abstract
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