APA (7th ed.) Citation

Svarovskaya, A. V., Shabelsky, А. O., & Levshin, A. V. (2022). Charlson comorbidity index in predicting deaths in COVID-19 patients. «FIRMA «SILICEA» LLC.

Chicago Style (17th ed.) Citation

Svarovskaya, A. V., А. O. Shabelsky, and Artem V. Levshin. Charlson Comorbidity Index in Predicting Deaths in COVID-19 Patients. «FIRMA «SILICEA» LLC, 2022.

MLA (9th ed.) Citation

Svarovskaya, A. V., et al. Charlson Comorbidity Index in Predicting Deaths in COVID-19 Patients. «FIRMA «SILICEA» LLC, 2022.