A systematic review of existing observational tools to measure the food and physical activity environment in schools.

Address: Duke University School of Medicine, Department of Population Health Sciences, Durham, 27701, NC, USA. Electronic address: [email protected].; Boise State University, College of Education, Boise, ID, USA. Electronic address: [email protected].; University of Maryland School of Medicine, Department of Pediatrics, Division of Growth and Nutrition(a), Baltimore, MD, 21201, USA. Electronic address: [email protected].; University of North Carolina Charlotte, Charlotte, NC, USA. Electronic address: [email protected].; East Carolina University, Department of Nutrition Science, College of Allied Health Sciences, Greenville, NC, 27834, USA. Electronic address: [email protected].; Boise State University, College of Education, Boise, ID, USA. Electronic address: [email protected].; University of Maryland School of Medicine, Department of Pediatrics, Division of Growth and Nutrition(a), Baltimore, MD, 21201, USA. Electronic address: [email protected].; East Carolina University, Department of Public Health, Brody School of Medicine, Greenville, NC, 27834, USA. Electronic address: [email protected].