Controlled Comparison of Emergency Department Charting Software with a Case Simulation Comparator Model. - Kirt Walker; Sridhar Rajappan; Todd R. Johnson (AMIA, 2000)

Heuristic Analysis of Emergency Department Charting Software using a Case Simulation Comparator Model. - Kirt Walker; Sridhar Rajappan; Todd R. Johnson (MedInfo, 2001)

Controlled Software Evaluation Methodology: Case Simulation and Cognitive User Analysis. - Kirt Walker; Sridhar Rajappan; Todd R. Johnson (AMIA, 2002)

A History of Health Informatics in the Texas Medical Center. - Kirt Walker; Deepak Sagaram; James P. Turley (AMIA, 2002)