000 00297nam a22001337a 4500
003 OSt
020 _a9788174734310
100 _aRao,Sridhar B
245 _aEssentials of Epidemiology
260 _a New Delhi
_bAITBS Publishers
_c2022
300 _ap219
650 _aEpidemiology
942 _2ddc
_cBK
999 _c7512
_d7512