Cardio‐microcurrent device for chronic heart failure: first‐in‐human clinical study oleh Dragana Kosevic, Dominik Wiedemann, Petar Vukovic, Velibor Ristic, Julia Riebandt, Una Radak, Kersten Brandes, Peter Goettel, Hans‐Dirk Duengen, Elvis Tahirovic, Tatjana Kottmann, Hans Werner Voss, Marija Zdravkovic, Svetozar Putnik, Jan D. Schmitto, Johannes Mueller, Jesus Eduardo Rame, Miodrag Peric