UNAIDS/99.40E (English original, August 1999)
© Joint United Nations Programme on HIV/AIDS (UNAIDS) 1999.
All rights reserved. This document, which is not a formal publication of UNAIDS,
may be freely reviewed, quoted, reproduced or translated, in part or in full,
provided the source is acknowledged.
The document may not be sold or used in conjunction with
commercial purposes without prior written approval from UNAIDS (Contact: UNAIDS
The designations employed and the presentation of the material
in this work do not imply the expression of any opinion whatsoever on the part
of UNAIDS concerning the legal status of any country, territory, city or area or
of its authorities, or concerning the delimitation of its frontiers and
The mention of specific companies or of certain
manufacturers products does not imply that they are endorsed or
recommended by UNAIDS in preference to others of a similar nature that are not
mentioned. Errors and omissions excepted, the names of proprietary products are
distinguished by initial capital letters.
UNAIDS - 20 avenue Appia - 1211 Geneva 27 - Switzerland
(+41 22) 791 46 51 - Fax: (+41 22) 791 41 65
e-mail: firstname.lastname@example.org -