000 00429nam a2200169Ia 4500
008 210804s2009||||xx |||||||||||||| ||und||
041 _aeng
082 _a614
_bROT/MD
100 _aRothman Kenneth .J
245 0 _aModern epidemiology
250 _a3
260 _aNew delhi
_bWolters kluwer and lippincott williams &wilkins
_c2009
300 _a758
700 _aGreenberg Martin S
700 _aLash Timothy.L
942 _cBK
999 _c3243
_d3243