Use of and Comorbidities Associated With Diagnostic Codes for COVID-19 in US Health Insurance Claims

Use of and Comorbidities Associated With Diagnostic Codes for COVID-19 in US Health Insurance Claims
Kai-Cheng Yang, Byungkyu Lee, Yong-Yeol Ahn, and Brea L. Perry
JAMA Network Open 4, e2124643 (2021)
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