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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Cancer types used for patient-derived xenograft (PDX) models. The number of PDX models for each organ is shown for all periods (a), the first period from 2010 to 2016 (b), and the second period from 2017 onwards (c).