Nature highlights

Key research and analysis from this week's Nature magazine.

• Playing to the audience
• Clinical research on trial
• Gain wealth, lose health
• Echinoderms: Back to base
• Star in the making
• Gem of a semiconductor
• Apes hit by anthrax
• Koreans have a word for it
• Leishmaniasis transmission
• Haem biosynthesis: Clocking on

22 July 2004 table of contents