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. 2012 Dec 17;13(1):116. doi: 10.1186/1465-9921-13-116

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Copyright ©2012 Stoll et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Platelet counts and serum levels of platelet-derived mediators. The Figure shows platelet counts (A) and serum levels (ng/ml) of BDNF (B), TGF-β1 (C) and Serotonin (D) in different stages of COPD (GOLD II, GOLD III, GOLD IV) and in controls. The median (line within the box), interquartile range (edges of the box), the range of values that are not outliers (vertical lines) and outliers (cases more distant than 1.5 interquartile ranges from the upper or lower quartile: dots) are shown. Asterisks mark significant differences between the groups. Probability values of p<0.05 were regarded as statistically significant.