Observational studies in radiology.
Blackmore
C Craig
CC
Department of Radiology, Harborview Medical Center and Harborview Injury Prevention and Research Center, University of Washington, Box 359728, 325 Ninth Ave., Seattle, WA 98104, USA.
Cummings
Peter
P
D035843:Biomedical Research; D016022:Case-Control Studies; D015984:Causality; D015331:Cohort Studies; D015986:Confounding Factors, Epidemiologic; D016017:Odds Ratio; D011871:Radiology; D016032:Randomized Controlled Trials as Topic; D015983:Selection Bias