Robert J. Johnson

Skiing Trauma and Safety: Seventh International Symposium

C. Daniel Mote, Skiing Safety, Robert J. Johnson, 1989 .

Trends in skiing injuries—Analysis of a six-year study

Robert J. Johnson, R. Johnson, 1981 .

Skiing trauma and safety : sixth international symposium : a symposium

C. Daniel Mote, Skiing Safety, Robert J. Johnson, 1987 .

Skiing trauma and safety : eight international symposium

Skiing Safety, Robert J. Johnson, C. Daniel Mote, 1991 .

Do Helmets Reduce Fatalities or Merely Alter the Patterns of Death

Robert J. Johnson, Jasper E. Shealy, Cf Ettlinger, 2008 .

Review of Research Literature on Snowboarding Injuries as Might Relate to an Adjustable/Releasable Snowboard Binding

Robert J. Johnson, Jasper E. Shealy, Cf Ettlinger, 2008 .