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Rickels E, Zumkeller M.Rickels E, et al.Neurochirurgia (Stuttg). 1992 Jul;35(4):99-102. doi: 10.1055/s-2008-1052257.Neurochirurgia (Stuttg). 1992.PMID: 1508294
König K, Rickels E, Heissler HE, Zumkeller M, Samii M.König K, et al. Among authors: rickels e.J Neurosurg. 2001 Apr;94(4):621-3. doi: 10.3171/jns.2001.94.4.0621.J Neurosurg. 2001.PMID: 11302662
Jaeger M, Rickels E, Schmidt A, Samii M, Blömer U.Jaeger M, et al. Among authors: rickels e.Br J Anaesth. 2002 Mar;88(3):438-40. doi: 10.1093/bja/88.3.438.Br J Anaesth. 2002.PMID: 11990280Free article.