00312    a2200121   4500020001500000082001500015100001900030245004400049260003900093300002300132650001700155700001800172  a0443057044  a614.4bVET  aVetter, Norman  aEpidemiology and public health medicine  aNew YorkbHarcourt Ltdc1999g1999  a[viii],258p.c25cm  aEpidemiology  aMatthews, Lan