background all conditions that interfere with blood flow at any level within the portal system can lead to portal hypertension. for better management of this disorder, it is important to determine the underlying cause. in previ­ous studies, extra-hepatic disorders have been reported as the main cause of portal hypertension in children. in this study, we investigate the under­lying causes of por...

schizophrenia is a severe psychiatric illness with a lifetime prevalence of ˜1% that imposes a huge toll on patients, their families and public health services worldwide. delusions, hallucinations, disorganized speech, grossly disorganized or catatonic behavior and negative symptoms constitute the core symptoms of schizophrenia. although the neurotransmitter dopamine plays a prominent role in t...

childhood autism is a neurodevelopmental disorder characterized by impairments in social interactions, verbal and non-verbal communication and by a pattern of stereotypical behaviors and interests. the aim of this study was to estimate the dysmorphic facial features of children with autism and children with asperger syndrome.the examination was conducted on 60 children (30 with childhood autism...