00297nam a2200109Ia 4500008004100000082001700041100002200058245004000080260003400120300001000154650002300164150201s2008    xx            000 0 und d  a616.01bB08S  aSULLIVAN, LISA M.  aESSENTIALS OF BIOSTATICS WORLD BOOK  bIONES& BARTLETTaBARTONc2008  a1-135  aCOMMUNITY MEDICINE