Epidemiology of chronic pain in children and adolescents: a protocol for a systematic review update.
Lauren C HeathcoteCharlotte L LangleyChristine T ChambersJennifer A ParkerG Allen FinleyDarlene ChapmanGareth T JonesGary John MacfarlaneJustina MarianayagamPublished in: BMJ open (2021)
CRD42020198690.