Schmidt M, Christiansen CF, Mehnert F, Rothman KJ, Sorensen HT. Non-steroidal anti-inflammatory drug use and risk of atrial fibrillation or flutter: population based case-control study. Br Med J. 2011 Jul 4;343:d3450. doi: 10.1136/bmj.d3450
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