PMC:3359314 / 1908-2422 JSONTXT

{"project":"2_test","denotations":[{"id":"22649501-19150704-90845341","span":{"begin":248,"end":249},"obj":"19150704"},{"id":"22649501-19571808-90845342","span":{"begin":496,"end":497},"obj":"19571808"},{"id":"22649501-19571809-90845343","span":{"begin":501,"end":502},"obj":"19571809"},{"id":"22649501-19571811-90845344","span":{"begin":506,"end":507},"obj":"19571811"},{"id":"22649501-19349958-90845345","span":{"begin":511,"end":512},"obj":"19349958"}],"text":"Schizophrenia is a complex psychiatric disorder, affecting approximately 1% of the general population. It is characterized by positive symptoms, negative symptoms, and cognitive impairment. The heritability of schizophrenia is estimated to be 64% [1]. Although genes relevant for schizophrenia or variants that may modulate risk for the disease have been identified using both linkage- and candidate-based or whole genome association studies, the genetic basis of schizophrenia is still unclear [2], [3], [4], [5]."}