Charles S. Davis is President of CSD Biostatistics, Inc., a biostatistical consulting company in San Diego. He received his PhD in Biostatistics from the University of Michigan and...ver maisCharles S. Davis is President of CSD Biostatistics, Inc., a biostatistical consulting company in San Diego. He received his PhD in Biostatistics from the University of Michigan and is a Fellow of the American Statistical Association.ver menos