Kim D, Lauria DT, Poulos C, Dong B, Whittington D. Effect of travel distance on household demand for typhoid vaccines: implications for planning. Int J Health Plann Manage. 2013 Mar 12;Advance Online.
Mansfield CA, Pattanayak SK, McDow W, MacDonald R, Halpin P. Shades of green: measuring the value of urban forests in the housing market. J Forest Econ. 2005 Dec;11(3):177-99. doi: 10.1016/j.jfe.2005.08.002
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