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Background: Though suicide and suicidal behaviour in children and adolescents is a significant worldwide problem, anecdotally, it is difficult to identify validated assessment tools and specific clinical interventions from scientific literature for children and adolescents.To determine state of the science, we performed a systematic review of the literature.Methods: The following sources were used for searches from 1980 to 2011 : MEDLINE, Scopus and Pub Med.We searched by using specific terms present in the medical subject heading and text words to identify candidate articles.Articles were reviewed used methodological criteria similar to those used in Cochrane reviews.According to this approach, published articles were reviewed for study design description (e.g.inclusion criteria), type of data collected (e.g.study population), methodology (e.g.randomized vs.non-randomized) and type of outcome measures (e.g.based on psychological assessment of suicide risk, completed suicide etc.).Studies lacking an adequate description of those characteristics as well as duplicated publications were excluded.Due to significant variability of studies design, subgroup and sensitivity analysis of pooled results could not be performed? This review was confined to clinical and experimental studies conducted in human subjects and published or abstracted in English in peer reviewed journals.No restriction was imposed on studies with respect to blinding, type of design, presence or absence of randomization or sex, or racial/ethnic background of participants.Studies not providing details about design, inclusion and exclusion criteria, sample size, baseline population characteristics and clinical outcomes were excluded from further analysis.Results of the analysis will be presented with focus on the limited literature.available for clinical relevance and empirical assessment of suicidal states in children and adolescents.