TY  - RPRT
TI  - Clinical spirometry in normal Bantu.
AU  - Z M Johannsen
AU  - L D Erasmus
PY  - 1968
DO  - 10.1164/arrd.1968.97.4.585
UR  - https://pubmed.ncbi.nlm.nih.gov/4868646/
ID  - 4868646
ER  -