WORLD HEALTH ORGANIZATION
CHURCHES’ ACTION FOR HEALTH OF THE WORLD COUNCIL OF CHURCHES
INTERNATIONAL COMMITTEE OF THE RED CROSS
INTERNATIONAL FEDERATION OF RED CROSS AND RED CRESCENT SOCIETIES
INTERNATIONAL PHARMACEUTICAL FEDERATION
JOINT UNITED NATIONSPROGRAMME ON HIV/AIDS
MÉDECINS SANS FRONTIÈRES
OFFICE OF THE UNITED NATIONS HIGH COMMISSIONER FOR REFUGEES
PHARMACIENS SANS FRONTIÈRES
UNITED NATIONS CHILDREN’S FUND
UNITED NATIONS DEVELOPMENT PROGRAMME
UNITED NATIONS POPULATION FUND
This document is issued by the WHO Department of Essential Drugs and Other Medicines. Comments and suggestions for future revisions are welcome and can be sent to: The Director, Department of Essential Drugs and Other Medicines, World Health Organization, 1211 Geneva 27, Switzerland.
First edition 1996
Second edition 1999
© World Health Organization 1999
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