Diurnal fluctuations in thyroid hormones – the Bispebjerg study of diurnal variations​Bakhtawar Zahra Rabab Christian Zinck Jensen Henrik Løvendahl Jørgensen Henriette Pia Sennels a Department of Clinical Biochemistry, Copenhagen University Hospital – Amager and Hvidovre, Hvidovre, Denmarkb Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmarkc Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmarkd Department of Clinical Biochemistry, Copenhagen University Hospital – Bispebjerg and Frederiksberg, Copenhagen, Denmarkon April 21, 2026 at 4:42 am