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Lemcke J, Meier U, Müller C, Fritsch M, Kiefer M, Eymann R, Kehler U, Langer N, Schuhmann MU, Speil A, Weber F, Remenez V, Rohde V, Ludwig HC, Stengel D: On the method of a randomised comparison of programmable valves with and without gravitational units: the SVASONA study. Acta Neurochir Suppl. 2012, 114: 243-6. 10.1007/978-3-7091-0956-4_48.
Kehler U, Hirdes C, Weber C, Spuck S, Tronnier V, Kundt G, Piek J: CSF leaks after cranial surgery — a prospective multicenter analysis. Innovative Neurosurgery. Online 08/12/2012
Lemcke J, Meier U, Müller C, Fritsch MJ, Kehler U, Langer N, Kiefer M, Eymann R, Schuhmann MU, Speil A, Weber F, Remenez V, Rohde V, Ludwig HC, Stengel D: Safety and efficacy of gravitational shunt valves in patients with idiopathic normal pressure hydrocephalus: a pragmatic, randomised, open label, multicentre trial (SVASONA). J Neurol Neurosurg Psychiatry. 2013, 84 (8): 850-7. 10.1136/jnnp-2012-303936.
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Fritsch M, Kehler U, Meier U: Normal Pressure Hydrocephalus. Thieme Verlag. 2014, Stuttgart New York Dehli Rio
Gliemroth J, Käsbeck E, Kehler U: Ventriculocisternostomy versus ventriculoperitoneal shunt in the treatment of hydrocephalus: A retrospective, long-term observational study. Clin Neurol Neurosurg. 2014, 122: 92-6.