Depression and physical activity: a 10 year longitudinal study from 13 to 23 years of age.

Wold, B., Birkeland, M. S., Torsheim, T., (2005). Depression and physical activity: a 10 year longitudinal study from 13 to 23 years of age. .4th Annual Conference of the International Society for Behavioural Nutrition and Physical Activity, Amsterdam.