نتایج جستجو برای: epidemiological investigation
تعداد نتایج: 392474 فیلتر نتایج به سال:
In a nationwide investigation the risk of death by suicide for patients with multiple sclerosis (MS) was assessed using records kept at the Danish Multiple Sclerosis Registry (DMSR) and the Danish National Register of Cause of Death. The investigation covers all MS patients registered with DSMR with an onset of the disease within the period 1953-85, or for whom MS was diagnosed in the same peri...
background: unintentional drug intoxication is still a major cause of mortality and morbidity in young children. method & materials: in order to study changes of epidemiological indices of children intoxication during a 10-year period in hamadan province, all cases admitted to ghaem hospital from 1995-1999 were recruited, and compared with all cases admitted to the same hospital from 1990-1994....
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