The association between vitamin D intake with inflammatory and biochemical indices and mortality in critically ill patients with COVID‐19: A case‐control study oleh Maryam Gholamalizadeh, Faezeh Rabbani, Mina Ahmadzadeh, Azadeh Hajipour, Hayehe Musavi, Khadijeh Abbasi Mobarakeh, Zahra Salimi, Bojlul Bahar, Zahra Mahmoodi, Somayeh Gholami, Samaneh Mirzaei Dahka, Saeid Doaei, Mokammad Esmail Akbari