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. 2016 Apr 2;263(11):2358–2359. doi: 10.1007/s00415-016-8107-2

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted 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. 1 — Łucja Frey in 1918. The photo is from the first page of “Index Lectionum” of Lviv University No. 4977 (from the Archives of the University of Warsaw)