Availability of More-Healthy and Less-Healthy Food Choices in American Schools: A National Study of Grade, Racial/Ethnic, and Socioeconomic Differences

O’Malley, Patrick M; Johnston, Lloyd D; Delva, Jorge. (2007). Availability of More-Healthy and Less-Healthy Food Choices in American Schools: A National Study of Grade, Racial/Ethnic, and Socioeconomic Differences. Bridging the Gap - Research Informing Practice and Policy for Healthy Youth Behavior. 33(4, Supplement 1), S226-S239.