Urban N, Self S, Kessler L, Prentice R, Henderson M, Iverson D, Thompson D, Byar D, Insull W, Gorbach SL, et al. Analysis of the costs of a large prevention trial. Control Clin Trials. 1990 Apr;11(2):129-46.
Urban N, Self S, Kessler L, Prentice R, Henderson M, Iverson D, Thompson D, Byar D, Insull W, Gorbach SL, et al. Analysis of the costs of a large prevention trial. Control Clin Trials. 1990 Apr;11(2):129-46.