TY  - GEN
AU  - Casper,J
TI  - The introduction in 1928-29 of thorium dioxide in diagnostic radiology
SN  - 0077-8923
PY  - 1968///0619
KW  - Germany
KW  - History, 20th Century
KW  - Radiography
KW  - history
KW  - Thorium Dioxide
N1  - Publication Type: Historical Article; Journal Article
UR  - https://doi.org/10.1111/j.1749-6632.1967.tb50255.x
ER  -