TY  - RPRT
TI  - Barium studies in the aged.
AU  - A N EXTON-SMITH
AU  - G OSBORNE
PY  - 1961
DO  - 10.1136/bmj.1.5242.1799
UR  - https://pubmed.ncbi.nlm.nih.gov/13697704/
ID  - 13697704
ER  -