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Spiess BD, Ley C, Body SC, Siegel LC, Stover EP, Maddi R, D'Ambra M, Jain U, Liu F, Herskowitz A, Mangano DT, Levin J.Spiess BD, et al. Among authors: maddi r.J Thorac Cardiovasc Surg. 1998 Sep;116(3):460-7. doi: 10.1016/s0022-5223(98)70012-1.J Thorac Cardiovasc Surg. 1998.PMID: 9731788Free article.