000 00388nam a22001577a 4500
020 _a0632015012
050 _aMED RA 409
_b.A73
100 _aArmitage.P
245 _aStatistical methods in medical research
250 _a2rd ed
260 _aLondon
_bBlack scientific publication
_c1987
300 _axiii,559p.
_bill.
650 _aMedical reseach
700 _aBerry.G
942 _cBK
999 _c11054
_d11054