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Salmenperä M, Kuitunen A, Hynynen M, Heinonen J.Salmenperä M, et al. Among authors: heinonen j.J Cardiothorac Vasc Anesth. 1991 Apr;5(2):146-9. doi: 10.1016/1053-0770(91)90328-q.J Cardiothorac Vasc Anesth. 1991.PMID: 1863726Clinical Trial.
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