1. World Health Organization. Coronavirus disease (COVID-19): situation report. Accessed July 30, 2021. https://www.who.int/publications/m/item/weekly-epidemiological-update-on-covid-19---27-july-2021.
2. Anosmia/hyposmia is a good predictor of coronavirus disease 2019 (COVID-19) infection: a meta-analysis;Hariyanto;Int Arch Otorhinolaryngol,2020
3. Coronavirus disease 2019 and cardiovascular system: a narrative review;Kwenandar;Int J Cardiol Heart Vasc,2020
4. Human immunodeficiency virus and mortality from coronavirus disease 2019: a systematic review and meta-analysis;Hariyanto;South Afr J HIV Med,2021
5. COVID-19 and comorbidities: a systematic review and meta-analysis;Gold;Postgrad Med,2020