Cita APA (7a ed.)

Vasheghani, M., Jannati, N., Baghaei, P., Rezaei, M., Aliyari, R., & Marjani, M. (2021). The relationship between serum 25-hydroxyvitamin D levels and the severity of COVID-19 disease and its mortality. Nature Portfolio.

Cita Chicago Style (17a ed.)

Vasheghani, Maryam, Nasrin Jannati, Parvaneh Baghaei, Mitra Rezaei, Roqayeh Aliyari, y Majid Marjani. The Relationship Between Serum 25-hydroxyvitamin D Levels and the Severity of COVID-19 Disease and Its Mortality. Nature Portfolio, 2021.

Cita MLA (8a ed.)

Vasheghani, Maryam, et al. The Relationship Between Serum 25-hydroxyvitamin D Levels and the Severity of COVID-19 Disease and Its Mortality. Nature Portfolio, 2021.