Serum thyrotropin concentrations are not associated with the ankle-brachial index: results from three population-based studies - Ittermann, Till; Lorbeer, Roberto; Tiller, Daniel; Lehmphul, Ina; Kluttig, Alexander; Felix, Stephan; Werdan, Karl; Greiser, Karin Halina; Köhrle, Josef; Völzke, Henry; Dörr, Marcus (European thyroid journal, 2015)