Earnshaw SR, Kauf TL, McDade C, Potashman MH, Pauyo C, Reese ES, Senagore A. Economic impact of alvimopan considering varying definitions of postoperative ileus. J Am Coll Surg. 2015 Nov;221(5):941-50. doi: 10.1016/j.jamcollsurg.2015.08.004
Inabnet WB3rd, Winegar DA, Sherif BN, Sarr MG. Early outcomes of bariatric surgery in patients with metabolic syndrome: an analysis of the bariatric outcomes longitudinal database. J Am Coll Surg. 2012 Apr;214(4):550-6.
Phanikumar CV, Maitra B. Modeling willingness-to-pay values for rural bus attributes under different trip purposes. JTRF. 2006;45(2):31-44. doi: 10.22004/ag.econ.206787