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Background and Objectives: Exposure to lead and its effects on children's health is one of the most important and widespread concerns of human societies today. Therefore, the purpose of this systematic study was to evaluate blood lead levels in Iranian children. Materials and Methods: In this systematic review, PubMed, Scopus, Science Direct, Scientific Information Database (SID), and Iran Medex databases were comprehensively searched for papers published from 2005 to the end of October 2021. Studies that reported blood lead levels in Iranian children were collected. Then the articles were evaluated according to a pre-prepared checklist. Results: Of a total of 143 articles found in the initial search, 13 studies were included in our systematic review. The lowest and highest mean blood lead levels were 0.65 micrograms per deciliter in Abadan and 57.1 micrograms per deciliter in Mashhad, respectively. In three studies conducted in Mashhad and Isfahan, blood lead levels were reported to be higher than 5 Micrograms per deciliter in all children studied. The level of education of the father, the use of canned food, the habit of eating soil by the child, damage to the paint of the house, and the reduction of blood iron levels were the effective factors in increasing the blood lead levels in Iranian children. Conclusion: Due to the high prevalence of blood lead samples above 5 micrograms per deciliter in some studies, reducing the exposure to lead should be seriously pursued by health policy makers and health systems. [ABSTRACT FROM AUTHOR]

Background and Objective: According to the relatively high prevalence of systemic lupus erythematosus in Iran and difficulties of the disease, the aim of this study was to investigate the scientific production of Iranian researchers in lupus field in Scopus. Materials and Methods: This cross-sectional study applied a survey method with a scientometric approach. Scientific productions of Iranian researchers on Lupus indexed by Scopus until 2015 were studied. A total number of 432 records were extracted. Results were presented as number and percentage. Results: The majority of the papers (90.05%) published in 2006-2015 and 53.24% of them published in the last four years. The co-authorship shows that Iranian researchers tend to participate in groups. "Lupus" has published most number of papers (4.86%). Sixty one point eighty percent of Iranian papers have been published in journals with impact factor. Conclusion: The number of Iran's papers in Lupus field in Scopus Databases was low; however, the scientific production of Iranian researchers and their impact in this field are increasing that signifies the Iranian researchers' effort. [ABSTRACT FROM AUTHOR]