Foods and beverages offered in US public secondary schools through the National School Lunch Program from 2011-2013: Early evidence of improved nutrition and reduced disparities | Survey Research Center

Terry-McElrath, Yvonne M; O’Malley, Patrick M; Johnston, Lloyd D. (2015). Foods and beverages offered in US public secondary schools through the National School Lunch Program from 2011-2013: Early evidence of improved nutrition and reduced disparities. Preventive medicine. 78, 52-58.