The association between nutrient patterns and hospital stay duration and symptoms in COVID-19 in Iranian patients: cross-sectional study - Mirzababaei, Atieh; Shiraseb, Farideh; Mohamadi, Azam; Mehri Hajmir, Mahya; Ebrahimi, Sara; Zarrinvafa, Zeinab; Kazemian, Elham; Mehrvar, Amir; Mirzaei, Khadijeh (Frontiers in Nutrition, 2025)