From the World Health Organization. Essential medicines: 25 years of better health.
D019049:Developed Countries; D003906:Developing Countries; D017850:Economics, Pharmaceutical; D006291:Health Policy; D007391:International Cooperation; D020380:Needs Assessment; D004364:Pharmaceutical Preparations / Q000191:economics / Q000600:supply & distribution*; D014944:World Health Organization
D004364:Pharmaceutical Preparations