000 00323nam a2200121Ia 4500
008 200512s9999 xx 000 0 und d
082 _a614.44
100 _aSundar Rao PSS
245 0 _aIntroduction To Biostatistics And Research Methods
250 _a4th ed
260 _bPHI learning
_c2011
650 _acommunity medicine
999 _c57458
_d57458