共 8 条
[1]
FEDDEMA J, 1965, DIAGNOSTIC RADIOLOGI
[3]
Greenspan R H, 1967, Invest Radiol, V2, P419
[4]
JENSEN F, 1965, ENCYCLOPEDIA MEDICAL, V1
[6]
FOCAL SPOT VARIATIONS WITH EXPOSURE DATA - IMPORTANT FACTORS IN DAILY ROUTINE
[J].
ACTA RADIOLOGICA-DIAGNOSIS,
1968, 7 (02)
:161-&
[7]
MORGAN RH, 1962, AMER J ROENTGENOL RA, V88, P175
[8]
1961, RADIOLOGY, V76, P125