"Appropriate for undergraduates, graduate students, scholars, practitioners, and public policy makers, this extraordinary encyclopedia reflects and influences a dynamic field, will increase in value and importance, and is priced reasonably; even libraries holding previous editions should acquire it. Essential."
--Choice (June 2004)
"The authors provide an even-handed, thorough discussion for evne the most contentious topics, leaving readers to make up their own minds about the issues. This is a major resource for public, academic, and medical libraries."