title: The statistical challenges in clinical studies. Preface.
authors.affiliation: Department of Biostatistics, University of Washington, VA Puget Sound Health Care System, 1705 Pacific Street NE, F600, HSB, Seattle, WA 98195, USA. azhou@u.washington.edu
authors.forename: Xiao-Hua
authors.initials: XH
authors.lastname: Zhou
authors.forename: Laura Lee
authors.initials: LL
authors.lastname: Johnson
mesh_terms: D002986:Clinical Trials as Topic / Q000706:statistics & numerical data*; D003627:Data Interpretation, Statistical; D006801:Humans; D008516:Medicine, Chinese Traditional; D012107:Research Design / Q000706:statistics & numerical data