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2. Free-standing ERs eye lobbying to win state approval for growth. Modern healthcare. https://www.modernhealthcare.com/article/20150704/MAGAZINE/307049969/free-standing-ers-eye-lobbying-to-win-state-approval-for-growth. Published July 4, 2015. Accessed March 1, 2019.
3. Where do freestanding emergency departments choose to locate? A national inventory and geographic analysis in three states;Schuur;Ann Emerg Med,2017