TY  - RPRT
TI  - Radiological sciences, past and present.
AU  - B Lentle
AU  - J Aldrich
PY  - 1997
DO  - 10.1016/s0140-6736(97)05306-3
UR  - https://pubmed.ncbi.nlm.nih.gov/9242813/
ID  - 9242813
ER  -