Nickan Research Institute Journal of Parathyroid Disease 2345-6558 10 1 2022 01 01 Thyroid status and severity or mortality of COVID-19 e11187 e11187 10.34172/jpd.2022.11187 EN Afagh Hassanzadeh Rad https://orcid.org/0000-0001-6980-8866 Amirhossein Fakhre Yaseri https://orcid.org/0000-0001-8893-9802 Journal Article 10.34172/jpd.2022.11187 2022 10 23 2022 11 01 COVID-19 Thyroid hormones Non-thyroidal illness syndrome Free triiodothyronine