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. 2022 May 19;14(1):e120–e126. doi: 10.1055/s-0042-1747969

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ )

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 4 — Mean hours worked per week between residents in the night float system and residents in the traditional call system. There was no statistically significant difference in hours worked per week between the two groups (57.3 ± 4.6 for night float residents vs. 58.0 ± 5.7 for traditional call residents, p = 0.797).