Novel Gastroduodenal Developments : presentation by Sherine Khater (France) at Gastro Update Europe 2018, Prague, June 15-16. / Guido N. J. Tytgat
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  In: Central European Journal of Gastroenterology and Hepatology. - ISSN 2415-9107. - 2018. 4. évf. 3. sz., p. 138-141. : ill.