00273nam a2200121Ia 4500008004100000082001800041100001800059245001200077250000900089260000900098300000600107650003800113150614s9999    xx            000 0 und d  a813.54  VIS-R  aDavid Viscott  aRisking  aI ED  c1979  a0  aRisking  David Viscott,Literature