00486nam a2200145Ia 4500008004100000020001800041040001700059082002400076110003900100245010900139260002200248300001300270440003700283650002000320190328s9999||||xx |||||||||||||| ||und||  a92-4-120825-2  aNITILcNITIL  221sta615.58bW927U  aWorld Health Organisation (Geneva) 4aThe use of essential drugs, 5thbmodel list of essential drugs, fifth report of the WHO expert committee  aGenevabWHOc1992  aiv, 75p.  aWHO technical report series; 825  aEssential drugs