Turning the dial to futility.

Affi liations: From the Chest Department, Taipei Veterans General Hospital. Financial/nonfi nancial disclosures: The authors have reported to CHEST that no potential confl icts of interest exist with any companies/organizations whose products or services may be discussed in this article. Correspondence to: Kun-Ta Chou, MD, Chest Department, Taipei Veterans General Hospital, No. 201, Section 2 Shih-Pei Rd, Taipei 112, Taiwan; e-mail: [email protected] © 2011 American College of Chest Physicians. Reproduction of this article is prohibited without written permission from the American College of Chest Physicians ( http :// www . chestpubs . org / site / misc / reprints . xhtml ). DOI: 10.1378/chest.10-1821