000 00392cam a2200169 i 4500
020 _a0816121656
082 0 0 _a613
_bCHA
100 _aChang, R S
245 0 0 _aPreventive health care
250 _aNil
260 _aBoston
_bG. K. Hall Medical Publishers
_c1981
300 _a492 p.
650 2 _aPreventive medicine
654 _aCommunity Medicine
700 1 _aChang, R S
942 _cBK
999 _c4438
_d4438