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. 2020 Aug 21;6(34):eaba8272. doi: 10.1126/sciadv.aba8272

Fig. 1. Map of the 11 study regions.

Fig. 1

The flight tracks are also indicated in the boxes with western North America in gray, eastern North America in green, Europe in blue, Northeast China/Korea in red, southeast United States in brown, northern South America in purple, Gulf of Guinea in salmon, the Persian Gulf in black, India in orange, Southeast Asia in cyan, and Malaysia/Indonesia in magenta.