TY  - RPRT
TI  - [Planimetric determination of lung volume--a complement to spirometry].
AU  - M Bieber
AU  - H J Maurer
PY  - 1984
DO  - 10.1055/s-2008-1052982
UR  - https://pubmed.ncbi.nlm.nih.gov/6423491/
ID  - 6423491
ER  -