共 9 条
[2]
FELDMAN J, 1979, AM REV RESPIR DIS, V119, P239
[3]
KERREBIJN KF, 1982, EUR J RESPIR DIS, V63, P35
[5]
Pryor J A, 1981, Physiotherapy, V67, P140
[7]
SCHONI MH, 1989, J ROY SOC MED, V82, P32
[8]
WEBBER BA, 1990, THORAX, V45, P77