00365nam 2214982 450000100060000000300230000600500090002900800410003808200120007902000180009110000170010926000320012625000060015824500570016414982StarLibrary Marc Built20180430201711 ||||| |||||||||||amh  a616.075 a0-632-01275-7 aDAVID MACHIN bBlackwell Scientific c1987 a2 aStatistical tables for the design of clinical trials