Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE. :480-484 vol.1 1991
Conference Record of the 1991 IEEE Nuclear Science Symposium and Medical Imaging Conference Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE. :763-766 vol.2 1991