E R Christophersen

Automated data acquisition using an IBM key punch.

E R Christophersen, 1970, Journal of the experimental analysis of behavior.

Increasing the protection of newborn infants in cars.

E R Christophersen, E. Christophersen, M A Sullivan, 1982, Pediatrics.

Parental compliance with car seat usage: a positive approach with long-term follow-up.

E R Christophersen, E. Christophersen, J E Gyulay, 1981, Journal of pediatric psychology.

Children's behavior during automobile rides: do car seats make a difference?

E R Christophersen, E. Christophersen, 1977, Pediatrics.

Evaluation of group well-child care for improving burn prevention practices in the home.

E R Christophersen, E. Christophersen, K. Thomas, 1984, Pediatrics.

Injury control.

E R Christophersen, E. Christophersen, 1989, The American psychologist.