TY  - BOOK
AU  - 
ED  - WHO Study Group on Rheumatic Fever and Rheumatic Heart Disease
TI  - Quality assurance in diagnostic radiology: a guide prepared following a workshop held in Neuherberg, Federal Republic of Germany, 20-24 October 1980 
SN  - 9241541644
PY  - 1980///
CY  - Geneva
PB  - World Health Organization
KW  - Quality control
KW  - Technology, Radiologic
KW  - Radiography
ER  -