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. 2017 Apr 29;35(8):793–804. doi: 10.1007/s40273-017-0511-7

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Literature search results. CV contingent valuation, DCE discrete-choice experiment, SVQ social value of a quality-adjusted life-year QALY, VSL value of a statistical life. ^aExperimental design searches were run separately and then combined after deduplication and screening. ^bChoice-based experiments were included as a search term to pick up choice-based designs other than the typical methods such as DCE. ^cAll MEDLINE and Econlit records plus the first 400 of 1868 from PubMed sorted by relevance