00280nam a2200133Ia 4500020000900000082000800009100003100017245004300048250000600091260002700097300000800124500000800132650000600140  aNULL  a519  aMisra, B. N./ Misra, M. K. 0aIntroductory  Practical Biostatistics  a-  aCalcuttabNaya Prokash  a190  a526  a-