by OBITTS, SHANE, RICHEY, J.B
Year of Publication 12.05.1999

by OBITTS, SHANE, RICHEY, J.B
Year of Publication 13.05.1998

by J. COVIC, J.B. RICHEY, T.R. MCBRIDE
Year of Publication 08.05.1980

by M.C. CHEIKY, H.H. WILSON, J.B. RICHEY, R.H. WAKE
Year of Publication 29.11.1979

by Cutcher, J.L., Richey, J.B., Guthrie, M.R., Heflich, R.H., Lilly, G.E.
Published in Journal of dental research (01.03.1973)