Peripheral Iron Metabolism is Associated with Leg Movements on Polysomnography but Not with the Severity of Restless Legs Syndrome or Its Impact on Patients.

"Disclosure The authors declare that there are no conflicts of interest related to this work. This research was supported by the Medical Health Science and Technology Project of Zhejiang Provincial Health Commission under award number 2020383055/2020KY164."

"Disclosure: The authors declare that there are no conflicts of interest related to this work. This research was supported by the Medical Health Science and Technology Project of Zhejiang Provincial Health Commission under award number 2020383055/2020KY164."

"Written informed consent was obtained from all individuals included in the study. This study was approved by the Institutional Review Board of Sir Run Shaw Hospital (permit number: 20190226–9), and all procedures involving human subjects adhered to the Helsinki Declaration as revised in 1989. The study was registered in Chinese Clinical Trial Registry (clinical trial registration number: ChiCTR2000040784)."