共 51 条
[2]
[Anonymous], 1997, AM J RESP CRIT CARE, V155, pA315
[3]
Baumgartner KB, 1997, AM J EPIDEMIOL, V145, P242
[5]
BILLINGS CG, 1994, EUR RESPIR J, V7, P1172
[8]
CARRINGTON CB, 1978, NEW ENGL J MED, V298, P801, DOI 10.1056/NEJM197804132981501