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. 2018 Jan 26;97(4):e9757. doi: 10.1097/MD.0000000000009757

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Copyright © 2018 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access This material is licensed under the terms of the Open Government Licence except where otherwise stated. To view this licence, visit http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3 or write to the Information Policy Team, The National Archives, Kew, London, TW9 4DU, or email: psi@nationalarchives.gsi.gov.uk. http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3

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Table 1.

Baseline characteristics.

3.1.