introduction :  despite  recent  advances  in  treatment  of  oral  cancer,  it  still causes high rates of mortality and morbidity worldwide. delays in diagnosis and treatment of these cancers greatly affect the prognosis.  this study aimed to assess the treatment delay and its relation to diagnostic delay among oral cancer patients in tehran, iran. materials and methods : we studied 100 patie...

objective mental retardation (mr) or intellectual disability is one of three chronic and disabling neurological disorders of children and adolescents. its prevalence is estimated 1-3% of the population. mr is defined as significant sub-average intellectual functioning and adaptive behavior that become detectable before the age of 18. mr may come into view before 5 years as delay in at least two...

background: to determine the mean and median delays in pulmonary tuberculosis (ptb) diagnosis among adults in one of the world’s highest gross domestic product per capita countries and identify patient and health system‑related reasons for these delays. methods: this is a cross‑sectional, face‑to‑face, prospective study of 100 subjects with confirmed ptb, conducted at main tuberculosis (tb) adm...