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Galland, R. B., D. R. Fletcher, D. J. Evans, D. Shlugman, J. M. Polak, J. H. Baron, und R. B. Welbourn. The Zollinger-Ellison Syndrome and Ectopic Gastric Mucosa. 1982.

Galland, R. B., et al. The Zollinger-Ellison Syndrome and Ectopic Gastric Mucosa. 1982.