00318nam a2200109Ia 450000500170000000800410001708200160005810000170007424500690009126000400016030000080020020260224040824.0260224s9999||||xx |||||||||||||| ||und||  a519.502 DAN  aDaniel, W.W. 0aBiostatistics : a foundation for analysis in the health sciences  aNew York: John Wiley & Sons. c1999  a755