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Livingston EH, Ko CY.Livingston EH, et al. Among authors: ko cy.J Surg Res. 2002 Jun 1;105(1):48-52. doi: 10.1006/jsre.2002.6448.J Surg Res. 2002.PMID: 12069501
Bilimoria KY, Bentrem DJ, Ko CY, Ritchey J, Stewart AK, Winchester DP, Talamonti MS.Bilimoria KY, et al. Among authors: ko cy.Cancer. 2007 Aug 15;110(4):738-44. doi: 10.1002/cncr.22852.Cancer. 2007.PMID: 17580363Free article.