Rafferty, H., E. Rocha, P. Gonzalez-Mego, C. Ramos, M. M El-Hagrassy, M. E. Gunduz, E. Uygur-Kucukseymen, H. Zehry, S. Chaudhari, P. E. Teixeira, G. R. Rosa, A. L. Zaninotto, C. Connor, U. Eden, C. Ramos-Estebanez, F. Fregni, L. Dipietro, and T. Wagner. “Cost-Effectiveness Analysis to Inform Randomized Controlled Trial Design in Chronic Pain Research: Methods for Guiding Decisions on the Addition of a Run-In Period”. Principles and Practice of Clinical Research, vol. 8, no. 2, Aug. 2022, pp. 31-42, doi:10.21801/ppcrj.2022.82.5.