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. 2016 May 25;533(7604):527–531. doi: 10.1038/nature18271

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© The Author(s) 2016

This work is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons licence, users will need to obtain permission from the licence holder to reproduce the material. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Extended Data Figure 1 — The different instruments are indicated with different plotting symbols. Instrument descriptions and acronyms can be found in Methods.