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Lanz E, Däubler F, Eissner D, Brod KH, Theiss D.Lanz E, et al. Among authors: theiss d.Reg Anaesth. 1986 Jan;9(1):4-8.Reg Anaesth. 1986.PMID: 3961226German.
Kehrberger E, Lanz E, Theiss D, Heintz-Bamberg D.Kehrberger E, et al. Among authors: theiss d.Reg Anaesth. 1985 Oct;8(4):73-7.Reg Anaesth. 1985.PMID: 4070708Clinical Trial.German.