. 2019 Apr 24;16(8):1455. doi: 10.3390/ijerph16081455
© 2019 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Figure 3.
Risk factors of lung cancer and their proxies.