1. From the Medizinische Klinik und Poliklinik I (C.L.S., D.F., P.G., M.L., G.E., J.B.), Universitätsklinikum Würzburg, Bayerische Julius-Maximilians-Universität Würzburg, Germany; and the Department of Physiological Sciences (C.L.S., I.S.), Federal University of Espírito Santo, ES, Brazil.