000 00332nam a2200121Ia 4500
008 220802s2004 xx 000 0 und d
041 _aeng
082 _a612.724 AND
100 _aANDERSON, D.L.
245 _aA GUIDE TO PATIENT RECRUITMENT AND RETEATION
260 _aBOSTON
_bThomson
_c2004
650 _aCommunity Medicine (614.44)
999 _c140851
_d140851