000 00293nam a2200097Ia 4500
008 220809s2000 xx 000 0 und d
041 _aeng
245 _aClinics in Chest Medicine: Chronic obstructive pulmonary disease Vol.21, No.4, 2000
260 _aLondon
_bWBS
_c2000
520 _aBack Volume
999 _c161502
_d161502