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World J Gastroenterol. Aug 7, 2012; 18(29): 3800-3805
Published online Aug 7, 2012. doi: 10.3748/wjg.v18.i29.3800
Published online Aug 7, 2012. doi: 10.3748/wjg.v18.i29.3800
Methodology for high-quality studies on course and prognosis of inflammatory bowel disease
Irene Modesto, Giovanni Perricone, Ambrogio Orlando, Mario Cottone, Division of Internal Medicine, “Villa Sofia-Cervello” Hospital, University of Palermo, 790146 Palermo, Italy
Author contributions: Modesto I, Perricone G and Orlando A reviewed the literature and wrote the paper; Cottone M revised the article critically.
Correspondence to: Mario Cottone, Professor, Division of Internal Medicine, “Villa Sofia-Cervello” Hospital, University of Palermo, Via Trabucco 180, 790146 Palermo, Italy. dickens@tin.it
Telephone: +39-9-16802746 Fax: +39-9-17305218
Received: February 6, 2012
Revised: May 10, 2012
Accepted: May 26, 2012
Published online: August 7, 2012
Revised: May 10, 2012
Accepted: May 26, 2012
Published online: August 7, 2012
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