000 00284nam a2200121Ia 4500
100 _aWorld Health Organization
020 _a92-4-120867-8
942 _cBK
245 _aThe Use of essential drugs
260 _aWHO, Geneva
_c1997
082 _a615.1 WHO/TRS
300 _avi,74p biblio.
999 _c33687
_d33687