title: Designing and testing self-help interventions.
authors.forename: L O
authors.initials: LO
authors.lastname: Walker
authors.forename: M K
authors.initials: MK
authors.lastname: Sandor
authors.forename: D
authors.initials: D
authors.lastname: Sands
mesh_terms: D000293:Adolescent; D001521:Behavior Therapy / Q000379:methods*; D015400:Clinical Nursing Research; D006801:Humans; D011380:Programmed Instructions as Topic; D000297:Psychology, Adolescent