共 14 条
[7]
OSTLE B, 1963, STATISTICS RES
[8]
PASTERKAMP H, 1983, MED INSTRUM, V17, P355
[9]
PASTERKAMP H, 1985, AM REV RESPIR DIS, V31, P61
[10]
PATERKAMP H, 1987, CHEST, V91, P376