Acknowledgements
We gratefully thank the staff of the emergency departments and medical wards of all participating hospitals. Furthermore, we thank the many supporters, study and laboratory personnel at all participating centers who have made this trial possible, especially Cemile Bathelt, Katharina Regez, Ursula Schild, Sonja Schwenne, Merih Guglielmetti, Kristina Schumacher, Fausta Chiaverio, Renate Hunziker, Ursina Minder and Nicole Salvisberg.