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Kulla M, Helm M, Lefering R, Walcher F.Kulla M, et al. Among authors: helm m.Emerg Med J. 2012 Jun;29(6):497-501. doi: 10.1136/emj.2010.107391. Epub 2011 Jul 27.Emerg Med J. 2012.PMID: 21795295
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Gaessler H, Helm M, Kulla M, Hossfeld B, Schmid U, Kerschowski J, Bretschneider I.Gaessler H, et al. Among authors: helm m.J Trauma Acute Care Surg. 2021 Aug 1;91(2):344-351. doi: 10.1097/TA.0000000000003246.J Trauma Acute Care Surg. 2021.PMID: 34397955
Helm M, Kulla M, Lampl L.Helm M, et al.Anaesthesist. 2007 Nov;56(11):1142-6. doi: 10.1007/s00101-007-1253-2.Anaesthesist. 2007.PMID: 17726585Review.German.
Kulla M, Röhrig R, Helm M, Bernhard M, Gries A, Lefering R, Walcher F; Sektion Notaufnahmeprotokoll der DIVI.Kulla M, et al. Among authors: helm m.Anaesthesist. 2014 Mar;63(3):243-52. doi: 10.1007/s00101-014-2295-x.Anaesthesist. 2014.PMID: 24615292German.
Kulla M, Friess M, Schellinger PD, Harth A, Busse O, Walcher F, Helm M.Kulla M, et al. Among authors: helm m.Nervenarzt. 2015 Dec;86(12):1538-48. doi: 10.1007/s00115-015-4396-4.Nervenarzt. 2015.PMID: 26248579German.