AU - Huo X FAU - Huo, Xiqian AU - Armitage J FAU - Armitage, Jane AU - Livingston E FAU - Livingston, Edward H. AU - Lewis R FAU - Lewis, Roger J. TI - Use of Run-in Periods in Randomized Trials PT - BOOK SECTION DP - 2019 BTI - JAMA Guide to Statistics and Methods DA - 2019 Y2 - 2023/05/28 UR - jamaevidence.mhmedical.com/content.aspx?aid=1186809813