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INTRODUCTION In the past 50 years, human cardiovascular tissue allografts, also called homografts, have been implanted into patients with different valvular diseases. The use of these allografts and  the number of cardiovascular tissue banks and their respective techniques increased. We conducted a survey to establish the quantity of allografts processed,(More)
Ever since the early days of homograft implantation in 1956, and the introduction into clinical practice by Ross and Barrat Boyes, homograft heart valves have proven to have many advantages. Its disadvantages became evident during long-term follow up. Factors, such as donor and recipient morbidity, tissue banking techniques, and the often complex surgical(More)
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