Skip to main content
. 2017 Mar 29;12(3):e0174587. doi: 10.1371/journal.pone.0174587

Fig 2. The geographical distribution of population, pterygium prevalence and number of people with pterygium in China in 2010.

Fig 2

(a) number of population; (b) overall prevalence of pterygium; (c) number of people with pterygium. The map was created by PGS using ArcMap version 10.1 (Environmental Systems Research Institute, Redlands, CA).