Assessing risk of bias in randomized controlled trials of methylphenidate for children and adolescents with attention deficit hyperactivity disorder ( ADHD ADHD )
作者单位:Department of PsychiatryUniversidade Federal do Rio Grande do SulPorto Alegre,Brazil[1]Department of PsychiatryUniversidade Federal de Sao PauloS?o Paulo,Brazil[2]Hurvitz Brain Sciences ProgramSunnybrook Research InstituteToronto,ON,Canada[3]