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. 2017 Feb 9;55(1):1017–1021. doi: 10.1080/13880209.2017.1285325

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© 2017 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 3. — Concentration-dependent inhibitory effect of (a) crude extract of N. ruderalis (Nr.Cr) and (b) verapamil on high K⁺ (80 mM) and carbachol (1 μM) induced pre-contracted isolated trachea. Values are expressed as mean ± SEM, n = 5.