TY  - GEN
AU  - Proto,A V
AU  - Chaliff,M I
TI  - Apical opacity: a normal finding on posteroanterior chest radiographs
SN  - 0033-8419
PY  - 1986///1120
KW  - Adult
KW  - Aged
KW  - Female
KW  - Humans
KW  - Male
KW  - Middle Aged
KW  - Radiography, Thoracic
KW  - Subclavian Artery
KW  - diagnostic imaging
KW  - Subclavian Vein
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1148/radiology.161.2.3763914
ER  -