title: Can the effectiveness of physical activity programs be improved? Response to Clark.
authors.forename: K
authors.initials: K
authors.lastname: Samaras
authors.forename: L V
authors.initials: LV
authors.lastname: Campbell
authors.forename: D J
authors.initials: DJ
authors.lastname: Chisholm
mesh_terms: D000368:Aged; D003924:Diabetes Mellitus, Type 2 / Q000628:therapy*; D015444:Exercise; D006293:Health Promotion; D006801:Humans; D008875:Middle Aged; D010349:Patient Compliance; D010809:Physical Fitness