Can someone direct me to 2 or 3 classical textbooks that have been widely used for courses in Epidemiology 101 -Introduction to Epidemiology? -- Bernard L. Cohen Physics Dept., University of Pittsburgh Pittsburgh, PA 15260 Tel: (412)624-9245 Fax: (412)624-9163 e-mail: blc at pitt.edu web site: http://www.phyast.pitt.edu/~blc