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Cao D, Shah A, Liu Y.Cao D, et al.Clin Gastroenterol Hepatol. 2011 Sep;9(9):e92-3. doi: 10.1016/j.cgh.2011.03.021. Epub 2011 Mar 25.Clin Gastroenterol Hepatol. 2011.PMID: 21440670No abstract available.
Shah A, Ma H, Sun X, Cao D.Shah A, et al.Interact Cardiovasc Thorac Surg. 2012 Jul;15(1):169-70. doi: 10.1093/icvts/ivs081. Epub 2012 Apr 18.Interact Cardiovasc Thorac Surg. 2012.PMID: 22514259Free PMC article.
Yang SR, Du JM, Gao YS, Cao DB.Yang SR, et al. Among authors: cao db.Eur J Cardiothorac Surg. 2013 Jan;43(1):e29. doi: 10.1093/ejcts/ezs569. Epub 2012 Nov 2.Eur J Cardiothorac Surg. 2013.PMID: 23125288No abstract available.