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Geographic plots of number of surgeries performed (proportional to area of circles) and the proportion of all glaucoma procedures represented by each procedure for that surgeon (more blue = higher proportion) for A) trabeculectomy in 2017, B) tube shunts in 2017, C) trabecular bypass shunts in 2013, and D) trabecular bypass shunts in 2017. The location of each circle has been displaced by a small random amount to help visualize data in locations with multiple providers.
