| http://www.w3.org/ns/prov#value | - However, one of the studies included in this review (McGirr and Turecki, 2008) has shown that substance abuse does not increase risk of suicide amongst patients with schizophrenia (alcohol abuse and lifetime suicide risk OR???=???0.29, drug abuse and lifetime suicide risk OR???=???0.94), although this study used data from interviews with family members of the deceased patients, which may not be th
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