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Kollmar, O.; Z'Graggen, K.; Schilling, M.K.; Buchholz, B.M.; Büchler, M.W. (2002). The suprapubic approach for laparoscopicappendectomy. Surgical endoscopy, 16(3), pp. 504-508. Springer-Verlag 10.1007/s00464-001-9027-4
Holzinger, F.; Z'Graggen, K.; Büchler, M.W. (1999). Mechanisms of biliary carcinogenesis: A pathogenetic multi-stage cascade towards cholangiocarcinoma. Annals of oncology, 10(suppl 4), S122-S126. Oxford University Press 10.1093/annonc/10.suppl_4.S122
