About the Authors

Elizabeth A Almasi
Randall S Stafford
Richard L Kravitz
Peter R Mansfield

Competing Interests

RSS has received current or past research funding from Merck and Company, GlaxoSmithKline, Bayer, and Proctor and Gamble. Speaking honoraria and travel expenses have been provided by Merck and Company, Bayer, and GlaxoSmithKline. This research has been supported by a Stanford University Presidential Scholars Award (EAA) and a research grant from the United States Agency for Health-care Research and Quality (R01-HS013405) (EAA, RSS).