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[Mechanism of ulcers].
Péterffy P, Péterffy AP, Lendvay P, Péterffy P Jr, Kerekes S. Péterffy P, et al. Among authors: kerekes s. Acta Chir Acad Sci Hung. 1975;16(1):1-5. Acta Chir Acad Sci Hung. 1975. PMID: 1154956 German.
[Segments of the stomach].
Péterffy P, Péterffy P Jr, Kerekes S. Péterffy P, et al. Among authors: kerekes s. Acta Chir Acad Sci Hung. 1972;13(4):337-47. Acta Chir Acad Sci Hung. 1972. PMID: 4662932 German. No abstract available.
[Our experience with the Billroth I operation].
PETERFFY P, KEREKES S. PETERFFY P, et al. Among authors: kerekes s. Magy Seb. 1961 Aug;14:216-24. Magy Seb. 1961. PMID: 13734746 Hungarian. No abstract available.