共 5 条
[1]
CROMPTON GK, 1982, LANCET, V1, P1243
[3]
PAVIA D, 1982, LANCET, V2, P332
[4]
TATHAM HE, 1985, POSTGRADUATE MED J, V61, P599
[5]
TAYLOR RG, 1985, THORAX, V40, P212