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Christenson JT, Sierra J, Trindade PT, Dominique D, Kalangos A.Christenson JT, et al. Among authors: sierra j.Tex Heart Inst J. 2004;31(4):387-91.Tex Heart Inst J. 2004.PMID: 15745290Free PMC article.
Christenson JT, Vala DL, Licker M, Sierra J, Kalangos A.Christenson JT, et al. Among authors: sierra j.Tex Heart Inst J. 2005;32(4):515-21.Tex Heart Inst J. 2005.PMID: 16429895Free PMC article.
Christenson JT, Sierra J, Didier D, Beghetti M, Kalangos A.Christenson JT, et al. Among authors: sierra j.Cardiol Young. 2004 Feb;14(1):39-45. doi: 10.1017/s1047951104001076.Cardiol Young. 2004.PMID: 15237669
Licker M, Sierra J, Kalangos A, Panos A, Diaper J, Ellenberger C.Licker M, et al. Among authors: sierra j.Transfusion. 2007 Feb;47(2):341-50. doi: 10.1111/j.1537-2995.2007.01111.x.Transfusion. 2007.PMID: 17302782Clinical Trial.
Christenson JT, Sierra J, Romand JA, Licker M, Kalangos A.Christenson JT, et al. Among authors: sierra j.Asian Cardiovasc Thorac Ann. 2007 Oct;15(5):408-12. doi: 10.1177/021849230701500510.Asian Cardiovasc Thorac Ann. 2007.PMID: 17911069