APA (7th ed.) Citation

Ola Alsegai, Kannan Sridharan, Mona Hammad, & Mustafa Mohamed Hammad. (2021). Evaluation of serum vitamin D levels in COVID-19 positive critically ill adults. Pensoft Publishers.

Chicago Style (17th ed.) Citation

Ola Alsegai, Kannan Sridharan, Mona Hammad, and Mustafa Mohamed Hammad. Evaluation of Serum Vitamin D Levels in COVID-19 Positive Critically Ill Adults. Pensoft Publishers, 2021.

MLA (9th ed.) Citation

Ola Alsegai, et al. Evaluation of Serum Vitamin D Levels in COVID-19 Positive Critically Ill Adults. Pensoft Publishers, 2021.

Warning: These citations may not always be 100% accurate.