Note: This list contains duplicate records, as identified by the OpenAIRE deduplication algorithm based on metadata analysis.

Validity of ICD-10 codes for COVID-19 patients with hospital admissions or ED visits in Canada: a retrospective cohort study BMJ Open · 2022 · 10.1136/bmjopen-2021-057838
Validity of ICD-10 codes for COVID-19 patients with hospital admissions or ED visits in Canada: a retrospective cohort study BMJ Open · 2022 · 35063962
Validity of ICD-10 codes for COVID-19 patients with hospital admissions or ED visits in Canada: a retrospective cohort study BMJ Open · 2022 · PMC8787827