Оценка деятельности высших учебных заведений с использованием рейтинговых технологий: современное состояние и перспективы развития

Objective: the association between vitamin D and COVID-19 severity is not consistent. We compared prevalences and analyzed the association between vitamin D deficiency and COVID-19 severity in Northeast Mexico. Methods: this was a cross-sectional study with individuals consecutively included at a re... View More