. Author manuscript; available in PMC: 2019 Apr 17.
Published in final edited form as: Soc Sci Med. 2016 Jun 23;164:59–73. doi: 10.1016/j.socscimed.2016.06.035
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).