作者：Michel P^*; Arnold M; Hungerbuehler H J; Mueller F; Staedler C; Baumgartner R W; Georgiadis D; Lyrer P; Mattle H P; Sztajzel R; Weder B; Tettenborn B; Nedeltchev K; Engelter S; Weber S A; Basciani R; Fandino J; Fluri F; Stocker R; Keller E; Wasner M; Haenggi M; Gasche Y; Paganoni R; Regli L