TY  - RPRT
TI  - Lung function and postural changes during pregnancy.
AU  - O Nørregaard
AU  - P Schultz
AU  - A Ostergaard
AU  - R Dahl
PY  - 1989
DO  - 10.1016/s0954-6111(89)80127-1
UR  - https://pubmed.ncbi.nlm.nih.gov/2623214/
ID  - 2623214
ER  -