Building a Speech Interface to a Medical Diagnostic System. - Smadar Shiffman; Alice W. Wu; Alex D. Poon; Christopher D. Lane; Blackford Middleton; Randolph A. Miller; Fred E. Masarie Jr.; Gregory F. Cooper; Edward H. Shortliffe; Lawrence M. Fagan (IEEE Expert, 1991)

Research Paper: The PEN-Ivory Project: Exploring User-interface Design for the Selection of Items from Large Controlled Vocabularies of Medicine. - Alex D. Poon; Lawrence M. Fagan; Edward H. Shortliffe (J. Am. Medical Informatics Assoc., 1996)