P. Berg

A decrease in both mild and severe bicycle-related head injuries in helmet wearing ages--trend analyses in Sweden.

Ragnar Westerling, R. Westerling, P. Berg, 2007, Health promotion international.

Bicycle helmet use among schoolchildren—the influence of parental involvement and children's attitudes

P Berg, R Westerling, R. Westerling, 2001, Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention.

A mission on the Midway : amos alonzo stagg and the gospel of football

P. Berg, 1996 .