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Gummert, Jan F; Demertzis, Stefanos; Matschke, Klaus; Kappert, Utz; Anssar, Marcel; Siclari, Francesco; Falk, Volkmar; Alderman, Edwin L; Harringer, Wolfgang (2006). Six-month angiographic follow-up of the PAS-Port II clinical trial. Annals of thoracic surgery, 81(1), pp. 90-6. New York, N.Y.: Elsevier 10.1016/j.athoracsur.2005.06.035
