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. 2021 Mar 31;18:14799731211005023. doi: 10.1177/14799731211005023

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© The Author(s) 2021

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — FGF-2, HGF, sVEGFR-2, sHER-2/neu, G-CSF, and SCF, which participate as angiogenic and tumor progression factors, showed lower serum concentrations in women with COPD-BS than women with COPD-TS (n = 70). Bars represent Ln of ng/mL, median (interquartile range). (A) FGF-2, (B) HGF, (C) sVEGFR-2, (D) sHER-2/neu, (E) G-CSF, and (F) SCF. COPD-BS, chronic obstructive pulmonary disease from exposure to BS; COPD-TS, COPD from smoking; FGF-2, fibroblast growth factor; HGF, hepatocyte growth factor; sVEGFR-2, soluble vascular endothelial growth factor receptor 2; SHER-2/neu, soluble human epidermal growth factor 2; G-CSF, granulocyte colony. *P < 0.01, ***P < 0.0001.