Masters E, Zlateva G, Harris NI. Real-world data for use in the real world: the pain paradigm. Ispor Connections. 2013;19(2):9-11.
Nguyen USDT, Rothman KJ, Demissie S, Jackson DJ, Lang JM, Ecker JL. Epidural analgesia and risks of cesarean and operative vaginal deliveries in nulliparous and multiparous women. Matern Child Health J. 2010 Sep 1;14(5):705-12.
Wolowacz SE, Khan SB. The New National Institute of Health and Clinical Excellence (NICE) Single Technology Appraisal (STA) process: experience from the first completed appraisals. Ispor Connections. 2007;13(2):12-5.
Mansfield CA. A consistent method for calibrating contingent value survey data. South Econ J. 1998;64(3):665-81.