Creating a framework for conducting randomized clinical trials during disease outbreaks por Dean, NE, Gsell, P-S, Brookmeyer, R, Crawford, FW, Donnelly, CA, Ellenberg, SS, Fleming, TR, Halloran, ME, Horby, P, Jaki, T, Krause, PR, Longini, IM, Mulangu, S, Muyembe-Tamfum, J-J, Nason, MC, Smith, PG, Wang, R, Henao-Restrepo, AM, De Gruttola, V