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Koechlin NO, Burkhardt JK, Scherer M, Krayenbühl N, Sarnthein J, Bernays RL, Bozinov O.Koechlin NO, et al. Among authors: bernays rl.J Neurol Surg A Cent Eur Neurosurg. 2013 Jul;74(4):216-21. doi: 10.1055/s-0032-1304809. Epub 2012 Aug 1.J Neurol Surg A Cent Eur Neurosurg. 2013.PMID: 22855319Free article.