M. Á De la Cámara, A. I. Pardos-Sevilla, A. Jiménez-Fuente, and Óscar L. Veiga, “Need to promote healthy lifestyle as primary prevention to the COVID-19 and to improve the immune response to vaccines”, Acta Biomed, vol. 92, no. 1, p. e2021026, Nov. 2020, doi: 10.23750/abm.v92i1.10788.