000 00267nam a2200109Ia 4500
008 241014s9999||||xx |||||||||||||| ||und||
100 _aNelson, E. Kenrad
245 0 _aSurveillance .( photo copy)
300 _a119 to 574
650 _aEpidemiology
942 _bSPH
_cBK
999 _c19445
_d19445