Parts of this study were supported by Weinmann Emergency Medical Technology GmbH + Co.KG.

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Erratum 27. Sutter J, Panczyk M, Spaite DW et al (2015) TelephoneCPRinstructionsinemergencydispatch systems: qualitativesurveyof911callcenters. West J Emerg Med 16:736-742 28. Trimmel H, Wodak A, Voelckel W (2006) Hubschrauberdisposition mit dem Advanced-Medical-Priority-Dispatch-System -Erwartungen erfüllt? Notfall Rettungsmed 9:437-445 29. Wnent J, Gräsner J-T, Seewald S et al (2018) Jahresbericht 2017 des Deutschen Reanimationsregisters. Anästh Intensivmed 59:355-357 30. Wu Z, Panczyk M, Spaite DW et al (2018) Telephone cardiopulmonary resuscitation is independently associated with improved survival and improved functional outcome after out-of-hospital cardiac arrest. Resuscitation 122:135-140

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