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. 2016 Apr 15;34(10):993–1004. doi: 10.1007/s40273-016-0404-1

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial 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. 5 — The iteration schemes of the EuroQol protocols. h target health state, U(h) value of state h, x time in full health. For states considered better than death, all three protocols present life A as x years in full health and life B as 10 years in the target state. For states considered worse than death, the MVH and Paris protocols present life A as 10-x years in the target state followed by x years in full health, and life B as immediate death; in the EQ-VT, life A is presented as x years in full health and life B as 10 years in full health followed by 10 years in the target state. In the MVH and Paris protocols, the tasks proceed along the directions of the arrows until indifference or the end of the branch in the graph is reached. In the EQ-VT, the tasks terminate only when indifference is stated, and the direction of the tasks can be reversed at any point