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. 2020 Feb 8;146(3):605–619. doi: 10.1007/s00432-020-03144-7

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© The Author(s) 2020

Open AccessThis 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. 3 — Percent inhibition of NRG1b CELx signal for HER2+ cell lines versus HER2−/HSFs+ patient samples. Inhibition of NRG1-driven HER2 signaling by pertuzumab (10 mg/mL) or trastuzumab (10 mg/mL) alone or in combination in the CELx test. Percentages shown represent the average of four HER2+ HSFs+ cell lines (SKBR3, EFM192A, HCC1569, and ZR75-30) or 5 HER2−/HSFs+ primary tumor samples (C978, C133, C264, C309, and C371), performed with 2 technical replicates per biological sample