DOMESTIC/INTERNATIONAL 305.180 The Domestic/International Gastroenterology Surveillance Study (DIGEST) : an international comparative study of the prevalence and impact of gastrointestinal symptoms / guest ed. Vincenzo Stanghellini. - Oslo [etc.] : Scandinavian University Press, 1999. - [1], 54 s. : wykr. ; 28 cm. -(Scandinavian Journal of Gastroenterology, ISBN 0085-5928 ; vol, suppl. 231) Bibliogr. przy art B