The Health Action Process Approach as a motivational model for physical activity self-management for people with multiple sclerosis: a path analysis
Rehabilitation Psychology (2011) - Comment
pubmed: 21767037  doi: 10.1037/a0024583  issn: 1939-1544  issn: 0090-5550 

Chung-Yi Chiu, Ruth T. Lynch, Fong Chan, Norman L. Berven