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. 2020 Feb 24;21:70. doi: 10.1186/s12859-020-3392-2

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© The Author(s) 2020

Open Access This 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. 9 — UML diagram of the dataset HMDD v3.0. The attributes in red are the identifiers of the nodes of a given type (i.e., the primary key in a relational database), while attributes in green refer to the identifier of nodes of other types (i.e., foreign keys in a relational database)