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Adolescence and young adulthood definitions Adolescence (aged 10-19 years) according to World Health Organization is a period involving biological, psychological, sociocultural expressions and cognitive development. During this stage, adolescents become gradually more independent, with parents’ autonomy, attachment with the peers, beginning sexual interests and with penal responsibility [1, 2]. Young adulthood (aged 18-26 years) is a lifespan period that generally occurs complete independency, romantic relationships, end of college, begin working, become financially autonomous, leave home and start a family [3].

Pediatric rheumatic disease patients: time to extend the age limit of adolescence?