background: herpes virus group can persist in the latent form in the body, pneumocystis jerovecii, on the other hand, is a fungus which is ubiquitous in the respiratory tract of mammals, with 90% of adult human beings possessing antibodies to this organism. concomitant presence of different microorganisms, may result in one microorganism altering the activity of another. objectives: to determin...

110 disabled and 110 normal healthy children with the age range from 3 to 14 were examined in this cross sectional study. The average number of decayed tooth found 5.6 in deciduous and 6.5 in mixed dentition in disabled children, and the numbers were 3.5 and 4.0 respectively in normal children. Average number of missing tooth was 1.3 in disabled and was 1.0 normal child. The oral hygiene index ...

Mitral valve prolapse (MVP) is a relatively frequent valvular abnormality. In both children and adults with MVP, an increased incidence of ventricular arrhythmias has been reported. QT dispersion, defined as the difference in duration between the longest QT interval and the shortest one, for a given set of electrocardiographic leads has been proposed as a sign of regional difference in card...

abstract: autistic child may have a range of problems. failure of understand the meaning of words is the main characteristic of the autistic child. child `s ability to communicate may also be inappropriate. in briefly, the areas of language problems in these children, in other languages, are pragmatic and semantic. because of the difficulties of the working with autistic children, research rela...

regardless of severity, earlier intervention to correct hearing loss in children improves speech development and conversational abilities. a cross-sectional study was performed on 230 neonates who were at risk of hearing loss in tehran university of medical sciences hospitals between september 2000 and february 2002. hearing was examined before the 3rd month by auditory brainstem responses (abr...