Placebo-controlled trials, ethics, and the goals of comparative effectiveness research: comment on "lack of head-to-head trials and fair control arms".
作者信息
Pearson Steven D
机构信息
Institute for Clinical and Economic Review, Boston, MA 02114, USA.
出版信息
Arch Intern Med. 2012 Feb 13;172(3):244-5. doi: 10.1001/archinternmed.2011.1715.
Abstract
摘要
Zotero 插件