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van der Zander K, Houben AJ, Kroon AA, de Leeuw PW.van der Zander K, et al. Among authors: kroon aa.Cardiovasc Res. 1999 Dec;44(3):595-600. doi: 10.1016/s0008-6363(99)00234-5.Cardiovasc Res. 1999.PMID: 10690292Clinical Trial.