Does anyone know of inexpensive software for interpolating points from scanned graphs? David L. Doggett, Ph.D. Senior Medical Research Analyst Health Technology Assessment and Information Services ECRI, a non-profit health services research organization 5200 Butler Pike Plymouth Meeting, Pennsylvania 19462, U.S.A. Phone: (610) 825-6000 x5509 FAX: (610) 834-1275 e-mail: [log in to unmask]