Cita APA (7a ed.)

Li, X., Geffen, J. v., Weele, M. v., Zhang, X., He, Y., Meng, X., . . . Theodoratou, E. (2021). An observational and Mendelian randomisation study on vitamin D and COVID-19 risk in UK Biobank. Nature Portfolio.

Cita Chicago Style (17a ed.)

Li, Xue, et al. An Observational and Mendelian Randomisation Study on Vitamin D and COVID-19 Risk in UK Biobank. Nature Portfolio, 2021.

Cita MLA (8a ed.)

Li, Xue, et al. An Observational and Mendelian Randomisation Study on Vitamin D and COVID-19 Risk in UK Biobank. Nature Portfolio, 2021.