000 00637 a2200241 4500
020 _a0781722187
082 _a610.72
_bDES
090 _c27489
_d47620
100 _aHulley, Stephen B.
245 _aDesigning clinical research
_banepidemiologic approach
250 _a2nd
260 _aPhiladelphia
_bLippincott Williams & Wilins
_c2001
_g2001
300 _axiv,336p.
_c25cm
650 _aResearch
650 _aMedicine
650 _aClinical research
700 _aNewman, Thomas B.
700 _aCummings, Steven R.
700 _aBrowner, Warren S.
700 _aGrady, Deborah
700 _aHearst, Norman
942 _cL
999 _c54211
_d54211