- Correspondence to Professor Francesco Negro, Divisions of Clinical Pathology and of Gastroenterology and Hepatology, Geneva University Hospital, 4 rue Gabrielle-Perret-Gentil, 1211 Geneva 4, Switzerland;
- Received February 19, 2014
- Revised August 13, 2014
- Accepted August 22, 2014
- First published September 11, 2014.
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