. 2018 Feb 12;9:163. doi: 10.3389/fmicb.2018.00163
Copyright © 2018 Asadollahi, Farahani, Mirzaii, Khoramrooz, van Belkum, Asadollahi, Dadashi and Darban-Sarokhalil.
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Figure 2.
Three most prevalent spa types in Europe, Asia, America, Africa and Australia.