000 00281cam a2200109 4500
001 DC220
008 060317t1983 xxu||||| |||| 00| 0 eng d
100 _aPocock, S
245 0 _aClinical trials. A practical approach
260 _bJohn Wiley and Sons,
_c1983
690 _aClinical Trials
999 _c44839
_d44839