Michels KB, Rothman KJ. Update on unethical use of placebos in randomised trials. Bioethics. 2003 Apr;17(2):188-204.
Reed (Earnshaw) SJ, Reed JH. The use of statistical quality control charts in monitoring interviewers. Proceedings of the Survey Research Methods Section, American Statistical Association. 1997 Jan;893-8.
Grubb NR, Sutherland GR, Campanella C, Fleming A, Sinclair CJ, Fox KA. Latissimus dorsi muscle: assessment of stimulation after cardiomyoplasty with Doppler US tissue imaging. Radiology. 1996 Apr 1;199(1):59-64. doi: 10.1148/radiology.199.1.8633173
Grubb NR, Fleming A, Sutherland GR, Fox KA. Skeletal muscle contraction in healthy volunteers: assessment with Doppler tissue imaging. Radiology. 1995 Mar 1;194(3):837-42. doi: 10.1148/radiology.194.3.7862989