TY  - RPRT
TI  - Improved routine chest radiography with a trough filter.
AU  - S Wieder
AU  - P L Adams
PY  - 1981
DO  - 10.2214/ajr.137.4.695
UR  - https://pubmed.ncbi.nlm.nih.gov/6974962/
ID  - 6974962
ER  -