title: How many, powerfully?
authors.affiliation: Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. kant@unc.edu
authors.forename: Shrikant I
authors.initials: SI
authors.lastname: Bangdiwala
mesh_terms: D056808:Biostatistics; D003627:Data Interpretation, Statistical; D006801:Humans; D061366:Numbers Needed To Treat; D012107:Research Design