Epidemiology of ulcer disease (proceedings)

Würsch, T.G.; Walser, R.; Hess, H.; Koelz, H.R.; Pelloni, S.; Sonnenberg, A.; Stuby, K.; Schmid, P.; Blum, A.L.

Zeitschrift für Gastroenterologie 15(10): 625

1977


ISSN/ISBN: 0044-2771
PMID: 930207
Document Number: 123186

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