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Martin NA, Patwardhan RV, Alexander MJ, Africk CZ, Lee JH, Shalmon E, Hovda DA, Becker DP.Martin NA, et al. Among authors: patwardhan rv.J Neurosurg. 1997 Jul;87(1):9-19. doi: 10.3171/jns.1997.87.1.0009.J Neurosurg. 1997.PMID: 9202259