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Background: Specific language impairment (SLI) is one of the most common disorders of language development in children, which has been less addressed in Persian studies. The aim of this study was to evaluate the grammatical characteristics of Persian-speaking children with SLI using Photographic Expressive Persian Grammar Test (PEGT). Methods: This case-control, cross-sectional study was conducted on 16 children with SLI and 16 normal children aged 4-6 years, who were monolingual Persian speakers. The subjects in both groups were age- and gender-matched. After selecting each participant, PEGT was administered and results were recorded in an answer sheet and analyzed. To analyze the data, the mean total scores of the test and mean scores related to each syntactic structure of the PEGT were compared between the two groups using Mann–Whitney test. Results: In this study, a significant difference was observed in mean total scores of the test between the studied groups. In detail, the mean score of the normal group was significantly higher as compared with the SLI group (P

Background: Physicians are one of the most important groups directly associated with public health and their health related lifestyle has a significant impact on their patient’s behaviors. Several studies showed that the majority of medical students did not have appropriate and healthy behaviors. The aim of this study was to determine the prevalence of risky lifestyle knowledge and behaviors among Shiraz medical students.Methods: This cross-sectional survey was conducted in 2011. Using a stratified random sampling method, 400 medical students were selected to fill in the questionnaires. The questionnaire contained 33 questions including demographic data, healthy lifestyle knowledge and behavior (including physical activity, fruit and vegetable consumption, water drinking, etc), perception of stress and student’s health information resource. The association between demographic factors and participants’ knowledge, practice and stress score was determined. The correlation between the participants’ knowledge and behavior scores was calculated.Results: The mean knowledge and attitude scores were 2.8 and 3.6, respectively. In 40% of knowledge and 80% of practice questions, the percentage of the correct answer was below 50%. There was a significant correlation between the participants’ knowledge and behavior scores (P