共 9 条
[2]
CLAY MM, 1983, LANCET, V2, P592
[3]
12-MINUTE WALKING TEST FOR ASSESSING DISABILITY IN CHRONIC-BRONCHITIS
[J].
BMJ-BRITISH MEDICAL JOURNAL,
1976, 1 (6013)
:822-823
[4]
MCGIVERN DV, 1984, BRIT J DIS CHEST, V78, P376
[7]
FACEMASK OR MOUTHPIECE FOR DELIVERY OF NEBULIZED BRONCHODILATOR AEROSOLS
[J].
BRITISH JOURNAL OF DISEASES OF THE CHEST,
1981, 75 (01)
:88-90
[9]
1984, LANCET, V2, P789