00294nam a22001217a 4500020001800000082001300018100001800031245003400049250001200083260004100095300001300136654002300149  a9789386480460  a613bSRE  aSreejith, P.S  aCommunity medicine simplified  a2nd ed.  aHyderabadbParas Medical Booksc2020  a1-850 p.  aCommunity Medicine