000 00389 a2200145 4500
020 _a0412276305
082 _a610.727
_bALT
090 _c28190
_d49149
100 _aAltman. Douglas G.
245 _aPractical statistics for medical research
260 _aLondon
_bChapman & Hall
_c1991
_g1991
300 _axii, 611p.
_c24cm.
650 _aMedicine-Research-Stastical methods
942 _cSR
999 _c54851
_d54851