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. Author manuscript; available in PMC: 2020 Dec 7.
Published in final edited form as: Laryngoscope. 2016 Oct 24;127(1):95–101. doi: 10.1002/lary.26188

Figure 2.

Figure 2.

For each hospital referral region, the supply of otolaryngologists identified in the AMA-Masterfile correlated with those obtained from the CMS dataset (Pearson correlation coefficient .513, p=.0001).