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. 2021 Jan 22;31(1):11–19. doi: 10.1007/s00062-020-00989-w

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — Time intervals from the start of symptoms to the start of the intervention. The figure on the left gives the median ±lower/upper quartile, and range for primary referrals, secondary referrals, and in-house stroke on a logarithmic scale. The figure on the right shows the relative frequency of the three sub-groups on a time scale