. 2019 Mar 18;97(1):113–175. doi: 10.1111/1468-0009.12373
© 2019 The Authors The Milbank Quarterly published by Wiley Periodicals, Inc. on behalf of The Millbank Memorial Fund
This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Figure 1.
PRISMA Flow Diagram