Recruitment, retainment, and follow-up of adolescent cohorts : lessons learned from 10 years of cohort and interventional studies in adolescents /

Following adolescents for extended periods of time is no easy task and requires significant planning, thought, and time. This paper is based on the learning from conducting a 5-year prospective cohort study where we followed 504 adolescents with knee pain from adolescence into early adulthood, to in...

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