Links to websites from which pictures have been used without permission:

http://science.nasa.gov/newhome/headlines/msad10dec98_1.htm
(Picture of HIV reverse transcriptase crystals used on title bar of each page)

http://www.abc.net.au/rn/talks/bbing/stories/s264217.htm
(Picture of tablets)

http://www.unicef.org/aids/
(Map showing number of people newly infected with HIV)

http://www4.nationalacademies.org/onpi/webextra.nsf/web/testing?OpenDocument
(Picture of blood samples)

http://www.nhgri.nih.gov/DIR/VIP/Glossary/Illustration/hiv.html
(HIV structure)

http://www.geriatricvideo.com/training/ct.html
(HIV picture)

http://www.infoweb.org/library/misc/
(HIV lifecycle)