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. 2014 Jun 10;1:11. doi: 10.1186/2054-3581-1-11

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© Pauly et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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On-call availability directly to HHD patients. (A) Monday-Friday during regular working hours, (B) Monday-Friday evenings, (C) overnight, and (D) weekends. The availability of different professionals is not mutually exclusive; a program may provide simultaneous coverage with a nurse and technologist, or a nurse or a technologist. These data cannot be used to conclude that some programs provide no coverage during certain time periods.