The following publications are possibly variants of this publication:
- Haptic modules for palpatory diagnosis training of medical studentsErnur Karadogan, Robert L. Williams II. vr, 17(1):45-58, 2013. [doi]
- The virtual haptic back for palpatory trainingRobert L. Williams II, Mayank Srivastava, John N. Howell, Robert R. Conatser Jr., David C. Eland, Janet M. Burns, Anthony G. Chila. icmi 2004: 191-197 [doi]
- Repeated Palpatory Training of Medical Students on the Virtual Haptic BackKapil Bajaj, John N. Howell, Robert R. Conatser Jr., Robert L. Williams II. mmvr 2008: 8-13