共 6 条
- [1] ARMITAGE P, 1971, STATISTICAL METHODS, P163
- [2] FAIRBAIRN A. S., 1962, THORAX, V17, P168, DOI 10.1136/thx.17.2.168
- [3] LAL S, 1964, BRIT MED J, V1, P815
- [5] QUANJER PH, 1983, CLIN RESPIR PHYSL S5, V19, P49
- [6] RITCHIE B, 1963, MED J AUSTRALIA, V1, P259