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. 2020 May 8;29(11):3113–3134. doi: 10.1177/0962280220920669

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© The Author(s) 2020

This article is distributed under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — Density plots of ITR effects on utility when (a) b = 1 (b) b = 2 (c) b = 3 (d) b = 4 (e) b = 5 for five donor assignment rules: recommend all male donors to (i) donate every eight weeks, (ii) donate every 10 weeks, (iii) donate every 12 weeks, (iv) donate according to the BART ITR, and (v) donate according to the optimized ITR (non-achievable in practice). The trade-off parameter b in the utility function varies from 1 to 5 at an increment of 1. A larger ITR effect on utility is more desirable.