What are the best ways to treat an arthritic knee?

Why does vitamin C cause interference to the urine glucose test used on the reagent strip methodology? Is it positive or negative interference?

What is the difference between "quality assurance" and "quality control"?

Which city in the U.S. has the greatest amount of obesity?

Which states in the U.S. currently have personnel licensure laws for their clinical labs? Which have facility licensure instead?

Are there phytochemicals or herbal medicines which interfere with prescription medicines?

Are there valid scientific reasons to eliminate milk from the school lunch program?

Biggest question of all...

Comments, suggestions, or requests to ghw@udel.edu. "http://www.physics.udel.edu/~watson/chns/challenge/" Last updated February 18, 2000. © George Watson, Univ. of Delaware, 2000.