Effectiveness of Internet-Based Cognitive Behavior Therapy (Fatigue in Teenagers on the Internet) for Adolescents With Chronic Fatigue Syndrome in Routine Clinical Care: Observational Study

Eline Albers   ^{1 *} , MSc ;   Linde N Nijhof   ^{1 *} , MSc ;   Emma E Berkelbach van der Sprenkel   ¹ , MSc ;   Elise M van de Putte   ¹ , MD, PhD ;   Sanne L Nijhof   ¹ , MD, PhD ;   Hans Knoop   ² , PhD

¹ Department of Pediatrics, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands

² Department of Medical Psychology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Public Health Research Institute, Amsterdam, Netherlands

*these authors contributed equally