. 2011 Jan 18;(47):2324. doi: 10.3791/2324
Copyright © 2011, Journal of Visualized Experiments
This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visithttp://creativecommons.org/licenses/by-nc-nd/3.0/
| Number of Contractions | Type of Contractions |