共 16 条
[2]
Clarkson JR., 1941, BRIT J RADIOL, V14, P265, DOI DOI 10.1259/0007-1285-14-164-265
[4]
CUNNINGHAM JR, TO BE PUBLISHED
[5]
FARMER FT, 1955, BRIT J RADIOL, V28, P305
[6]
GUPTA SK, 1964, THESIS U TORONTO
[8]
A COLLIMATING DEVICE FOR COBALT-60 TELETHERAPY UNITS
[J].
JOURNAL OF THE FACULTY OF RADIOLOGISTS-LONDON,
1954, 5 (04)
:239-247
[9]
JOHNS HE, 1961, PHYSICS RADIOLOGY
[10]
JOHNS HE, 1953, J CAN ASSOC RADIOL, V4, P1