The Essentials of
Biostatistics for Physicians,
Nurses, and Clinicians
Michael R. Chernick
Lankenau Institute for Medical Research
Wynnewood, PAA John Wiley & Sons, Inc., Publicationfffirs02.indd iiifirs 02 .indd iii 6 6/15/2011 4:09:05 PM/ 15 / 2011 4 : 09 : 05 PM