000 00510nam a2200181Ia 4500
999 _c148121
_d148120
005 20201015120224.0
008 180712s9999 xx 000 0 und d
020 _a9289011033
041 _aEN
082 _a616.2
_bWOR
_223
110 _983692
_aWorld Health Organization
245 _aMethods for cohort studies of chronic airflow limitation
260 _aCopenhagen:
_bWorld Health Organization;
_c1982
300 _avi, 133 p.
509 _aNS
650 4 _914653
_aRespiratory diseases
942 _cPR