共 5 条
[2]
Clarkson JR., 1941, BRIT J RADIOL, V14, P265, DOI DOI 10.1259/0007-1285-14-164-265
[4]
JOHNS HE, 1971, PHYSICS RADIOLOGY, P311
[5]
1962, ICRU10 CLIN DOS NBS, P23