Analysis of spirometric data from a national sample of healthy 6- to 24-year-olds (NHANES II).
Schwartz JD, Katz SA, Fegley RW, Tockman MS. Analysis of spirometric data from a national sample of healthy 6- to 24-year-olds (NHANES II). Am Rev Respir Dis. 1988 Dec; 138(6):1405-14.