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. 2019 Mar 19;56(5):536–547. doi: 10.1177/0004563219830733

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© The Author(s) 2019

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial 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 3. — Male and female age-related quantile regression with smoothed splines. AMH results from both the Elecsys (484 males, 282 females) and Access (469 males, 237 females) assays were analysed using quantile regression with smoothing splines using the R package Quantreg with taus of 0.05, 0.5 and 0.95. (Adapted from Access assay-only data previously published by the same authors¹⁷ under a creative commons agreement). NB: Values below the LOQ of the Roche Elecsys AMH assay (0.2 pmol/L) and the Beckman Coulter Access AMH assay (0.04 pmol/L) were not recorded. The zero point on the AMH axis is included for aesthetic appearance and ease of construction. AMH: anti-Müllerian Hormone.