Minor changes to previously approved research: a study of IRB policies.
National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA.
David B
DB
Resnik
Gwen
G
Babson
Gregg E
GE
Dinse
D035843:Biomedical Research; D028744:Ethics Committees, Research / Q000458:organization & administration; D016134:Organizational Policy; D014481:United States