Geier Andreas, Koch Alexander, Bach Jens, Schäfer Wolfgang, Jansen Marc, Trautwein Christian
Department of Internal Medicine III, Aachen University, University Hospital, D-52074 Aachen, Germany.
Lancet. 2007 May 12;369(9573):1664. doi: 10.1016/S0140-6736(07)60753-3.