000 00265 a2200109 4500
005 20160418145719.0
082 _2614.4
245 _aPrinciples of epidemiology epidemiology 345.601:
_b(Known to its friends as epi)
260 _c1989
300 _a135
942 _2ddc
_cBK
999 _c2225
_d2225