Circ., Genom. precis. med. Circ., Genom. precis. med. Genetically Determined Serum Calcium Levels and Markers of Ventricular Repolarization: A Mendelian Randomization Study in the UK Biobank Young William J. Warren Helen R. Mook-Kanamori Dennis O. Ramírez Julia van Duijvenboden Stefan Orini Michele Tinker Andrew van Heemst Diana Lambiase Pier D. Jukema J. Wouter Munroe Patricia B. Noordam Raymond 2021 research-article