Association of serum zinc level and clinical outcome in Egyptian COVID-19 patients
et al., The Egyptian Journal of Internal Medicine,
Retrospective 30 ICU patients and 30 non-ICU hospitalized patients in Egypt, showing lower zinc levels in ICU patients. All patients received zinc supplementation.
Mansour et al., 24 Sep 2022, retrospective, Egypt, peer-reviewed, mean age 59.2, 4 authors, study period July 2021 - December 2021.
email@example.com (corresponding author).