Benefit-risk assessment and reporting in clinical trials of chronic pain treatments: IMMPACT recommendations.

Kleykamp BA, Dworkin RH, Turk DC, Bhagwagar Z, Cowan P, Eccleston C, Ellenberg SS, Evans SR, Farrar JT, Freeman RL, Garrison LP, Gewandter JS, Goli V, Iyengar S, Jadad AR, Jensen MP, Junor R, Katz NP, Kesslak JP, Kopecky EA, Lissin D, Markman JD, McDermott MP, Mease PJ, O'Connor AB, Patel KV, Raja SN, Rowbotham MC, Sampaio C, Singh JA, Steigerwald I, Strand V, Tive LA, Tobias J, Wasan AD, Wilson HD.