title: Dear Editor.
authors: Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.
authors: Elin
authors: E
authors: Johansson
mesh_terms: D056044:Actigraphy / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D063766:Pediatric Obesity / Q000517:prevention & control*