MEDCAT: an APL program for medical diagnosis, consultation, and teaching. - Wilbur D. Hagamen; Martin Gardy; Gregory Bell; Edwin Rekosh; Steven Zatz (APL, 1985)

MEDCAT/CATS: Two Contrasting Artificial Intelligence Applications in Medical Education. - Wilbur D. Hagamen; Martin Gardy (CAIA, 1985)

The Numeric Representation of Knowledge and Logic - Two Artificial Intelligence Applications in Medical Education. - Wilbur D. Hagamen; Martin Gardy (IBM Syst. J., 1986)