1. World Health Organisation . WHO coronavirus (COVID-19) dashboard _ WHO coronavirus (COVID-19) dashboard with vaccination data. n.d. Available: https://covid19.who.int/
2. Ajuwon AJ , Ajuwon GA . Impact of the covid-19 lockdown on traders in ibadan, nigeria. Brooklyn, 2021. Available: https://items.ssrc.org/covid-19-and-the-social-sciences/covid-19-fieldnotes/impact
3. Comorbidity and its impact on patients with COVID-19;Sanyaolu;SN Compr Clin Med,2020
4. World Health Organization . World health organization - noncommunicable diseases (NCD) country profiles. 2018. Available: https://www.who.int/nmh/countries/2018/nga_en.pdf?ua=1%0Ahttp://www.who.int/nmh/countries/nga_en.pdf
5. Clinical and demographic characteristics of COVID-19 patients in lagos, nigeria: A descriptive study;Otuonye;J Natl Med Assoc,2021