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. 2018 Aug 13;15:127. doi: 10.1186/s12985-018-1036-1

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© The Author(s). 2018

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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 1 — Sampling of grapevines across the three primary appellations in Ontario for use in virus survey. The map is from http://www.vintages.com/images/ontario_wine_region-map.jpg. The insert table shows the numbers of samples, numbers of vine blocks and vineyards that were sampled from the three appellations in the province. Each sample is comprised of two basal leaves per vine from five vines in a vine panel (total of 10 leaves for each composite sample)