TY - GEN AU - Catalá-López, Ferrán AU - Ridao, Manuel AU - Núñez-Beltrán, Amparo AU - Gènova-Maleras, Ricard AU - Alonso-Arroyo, Adolfo AU - Aleixandre-Benavent, Rafael AU - Catalá, Miguel A AU - Tabarés-Seisdedos, Rafael PY - 2019 DO - 10.1186/s13643-019-0967-y SN - 2046-4053 UR - http://hdl.handle.net/20.500.12105/7453 AB - BACKGROUND: Attention deficit hyperactivity disorder (ADHD) is a childhood-onset disorder characterized by a persistent pattern of symptoms of developmentally inappropriate and impaired inattention and/or hyperactivity/impulsivity, with difficulties... LA - eng PB - BioMed Central (BMC) KW - Attention deficit hyperactivity disorder KW - Comorbidity KW - Epidemiological study KW - Meta-analysis KW - Prevalence KW - Spain KW - Systematic review TI - Prevalence and comorbidity of attention deficit hyperactivity disorder in Spain: study protocol for extending a systematic review with updated meta-analysis of observational studies TY - review article ER -