Leah Elizabeth Chapman, Scott A Richardson, Eric B Rimm, Steven L Gortmaker, Matthew M Lee, Juliana F W Cohen
Daily Saturated Fat and Sodium Content of Elementary School Meals in a Large Sample of 128 Geographically Diverse School Systems in the United States
Journal of the Academy of Nutrition and Dietetics
remember essays used write student would browse indexes books journals came across paragraph looked relevant copied anything found fit theory proposing left less constitutes methodology journalistic reviewan overview primary studies identified analysed systematic standardised objective way summary points systematic review overview primary studies used explicit reproducible methods metaanalysis mathematical synthesis results two primary studies addressed hypothesis way although metaanalysis increase precision result important ensure methods used review valid reliable contrast systematic review overview primary studies contains explicit statement objectives materials methods conducted according explicit reproducible methodology fig 1 fig 1 methodology systematic review randomised controlled trials1 advantages systematic review given box systematic review undertaken must search relevant articles thorough objective criteria used reject articles flawed must explicit independent results trials enduring useful systematic reviews notably undertaken cochrane collaboration regularly updated incorporate new evidence2 box 1 advantages systematic reviews3 return text