. 2016 Jan 4;13(1):97. doi: 10.3390/ijerph13010097
© 2016 by the authors; licensee MDPI, Basel, Switzerland.
This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
Figure 1.
Locations and types of parks in Chelsea, MA.