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Authors
Kirchebner, Johannes
Lau, Steffen
Sonnweber, Martina
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Article History
Received: 21 October 2020
Accepted: 12 February 2021
First Online: 4 March 2021
Declarations
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: This study was reviewed and approved by the Ethics Committee Zurich [Kanton Zürich] (committee’s reference number: KEK-ZH-NR 2014–0480) as a retrospective anonymised observational data analysis. Informed consent was obtained either from the patients hospitalised during the study or their guardian/legally authorized representative prior to analysis. No patients were under the age of 16 years, therefore no written informed consent from a parent or guardian was required. The study complied with the Helsinki Declaration of 1975, revised in 2008.
: Not applicable.
: All authors declare that they have no competing interests.
