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Naef, M; Sadowski, C; de Marco, D; Sabbioni, M; Balsiger, B; Laederach, K; Bürgi, U; Büchler, MW (2000). [Mason vertical gastroplasty in treatment of morbid obesity. Results of a prospective clinical study]. Chirurg, 71(4), pp. 448-55. Heidelberg: Springer-Medizin-Verlag 10.1007/s001040051081
