WITHDRAWN: Size Does Matter, But It Isn't Everything: The Challenge of Modest Treatment Effects in Chronic Pain Clinical Trials.

Abstract

Available online This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.