Additional file 2: of Study protocol: a randomised controlled trial on the clinical effects of levothyroxine treatment for subclinical hypothyroidism in people aged 80 years and over Du PuyR. PostmusI. StottD. BlumM. PoortvlietR. Den ElzenW. PeetersR. van MunsterB. WolffenbuttelB. WestendorpR. KearneyP. FordI. KeanS. MessowC. WattT. JukemaJ. DekkersO. SmitJ. RodondiN. GusseklooJ. MooijaartS. 2018 Participant consent form for screening. (PDF 68 kb)