1. Average normal values for the forced expiratory volumes in white Caucasian males;Cotes;Br Med J,1966
2. Differences in pulmonary functions in various racial groups;Oscherowitz;Am J Epidem,1972
3. Pulmonary function studies in healthy Chinese adults in Singapore;De Costa;Am Rev Respir Dis,1971
4. Spirometric lung function tests in normal men of African ethnic origin;Mustafa;Am Rev Respir Dis,1977
5. Normal values for ventilatory function in Rhodesian Africans;Cookson;Br J Dis Chest,1976