(untitled) - Hurter,J.; Boller,E.F.; Stdler,E.; Blattmann,B.; Bosshard,N.U.; Buser,H.-R.; Damm,L.; Kozlowski,M.W.; Schöni,R.; Raschdorf,F.; Dahinden,R.; Schlumpf,E.; et al. (Experientia, 1987)