TY  - RPRT
TI  - Supernumerary intrathoracic ribs.
AU  - J P Polga
AU  - M Kroeker
AU  - M Cloud
PY  - 1974
DO  - 10.1164/arrd.1974.109.2.283
UR  - https://pubmed.ncbi.nlm.nih.gov/4811784/
ID  - 4811784
ER  -