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Heavner JE, Boswell MV, Racz GB.Heavner JE, et al. Among authors: racz gb.Pain Physician. 2006 Apr;9(2):135-7.Pain Physician. 2006.PMID: 16703974Free article.
Heavner JE, Calvillo O, Racz GB.Heavner JE, et al. Among authors: racz gb.Reg Anesth. 1997 May-Jun;22(3):257-9. doi: 10.1016/s1098-7339(06)80011-8.Reg Anesth. 1997.PMID: 9168218
Shah RV, Smith HK, Chung J, Hegazi A, Racz GB.Shah RV, et al. Among authors: racz gb.Pain Physician. 2004 Apr;7(2):273-8.Pain Physician. 2004.PMID: 16868604Free article.