Steroid hormone receptor and COX-2 expression in chordoma. Fasig JH, Dupont WD, Olson SJ, Lafleur BJ, Cates JM (2007) Am J Clin Pathol 128: 375-81 Level-adjusted perioperative risk of sacral amputations. Devin C, Chong PY, Holt GE, Feurer I, Gonzalez A, Merchant N, Schwartz HS (2006) J Surg Oncol 94: 203-11 Microsatellite instability in sacral chordoma. Klingler L, Shooks J, Fiedler PN, Marney A, Butler MG, Schwartz HS (2000) J Surg Oncol 73: 100-3 Lumbosacral chordoma resection: image integration and surgical planning. Stephens GC, Schwartz HS (1993) J Surg Oncol 54: 226-32 Evaluation of the axonics modulation technologies sacral neuromodulation system for the treatment of urinary and fecal dysfunction. Cohn JA, Kowalik CG, Kaufman MR, Reynolds WS, Milam DF, Dmochowski RR (2017) Expert Rev Med Devices 14: 3-14 Cumulative multiple freeze-thaw cycles and testing does not affect subsequent within-day variation in intervertebral flexibility of human cadaveric lumbosacral spine. Tan JS, Uppuganti S (2012) Spine (Phila Pa 1976) 37: E1238-42 Clonality studies in sacral chordoma. Klingler L, Trammell R, Allan DG, Butler MG, Schwartz HS (2006) Cancer Genet Cytogenet 171: 68-71 Telomere reduction in giant cell tumor of bone and with aging. Schwartz HS, Dahir GA, Butler MG (1993) Cancer Genet Cytogenet 71: 132-8
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