Completeness and validity of a radiologic-epidemiologic database in Sweden.
Beckman
M O
MO
Department of Diagnostic Radiology, Karolinska Hospital, Stockholm, Sweden.
Ringertz
H G
HG
D016208:Databases, Factual / Q000592:standards*; D004813:Epidemiology; D006801:Humans; D011871:Radiology; D012042:Registries / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D013548:Sweden