An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Mackey K, Arkhipova-Jenkins I, Armstrong C, Gean E, Anderson J, Paynter RA, Helfand M.Mackey K, et al. Among authors: helfand m.Rockville (MD): Agency for Healthcare Research and Quality (US); 2021 Mar 15. Report No.: 21-EHC016.Rockville (MD): Agency for Healthcare Research and Quality (US); 2021 Mar 15. Report No.: 21-EHC016.PMID: 33784032Free Books & Documents.Review.
Chou R, Helfand M, Peterson K, Dana T, Roberts C.Chou R, et al. Among authors: helfand m.Rockville (MD): Agency for Healthcare Research and Quality (US); 2006 Sep. Report No.: 06-EHC009-EF.Rockville (MD): Agency for Healthcare Research and Quality (US); 2006 Sep. Report No.: 06-EHC009-EF.PMID: 20704046Free Books & Documents.Review.
Guise JM, Mahon S, Aickin M, Helfand M.Guise JM, et al. Among authors: helfand m.Rockville (MD): Agency for Healthcare Research and Quality (US); 2001 Apr. Report No.: 01-S001.Rockville (MD): Agency for Healthcare Research and Quality (US); 2001 Apr. Report No.: 01-S001.PMID: 20722104Free Books & Documents.Review.
Humphrey L, Chan BKS, Detlefsen S, Helfand M.Humphrey L, et al. Among authors: helfand m.Rockville (MD): Agency for Healthcare Research and Quality (US); 2002 Aug.Rockville (MD): Agency for Healthcare Research and Quality (US); 2002 Aug.PMID: 20722110Free Books & Documents.Review.
Nelson HD, Helfand M.Nelson HD, et al. Among authors: helfand m.Rockville (MD): Agency for Healthcare Research and Quality (US); 2002 Sep.Rockville (MD): Agency for Healthcare Research and Quality (US); 2002 Sep.PMID: 20722112Free Books & Documents.Review.
Helfand M, Mahon S, Eden K.Helfand M, et al.Rockville (MD): Agency for Healthcare Research and Quality (US); 2001 Apr. Report No.: 01-S002.Rockville (MD): Agency for Healthcare Research and Quality (US); 2001 Apr. Report No.: 01-S002.PMID: 20722115Free Books & Documents.Review.
Helfand M.Helfand M.Rockville (MD): Agency for Healthcare Research and Quality (US); 2004 Jan.Rockville (MD): Agency for Healthcare Research and Quality (US); 2004 Jan.PMID: 20722119Free Books & Documents.Review.
Chou R, Clark E, Helfand M.Chou R, et al. Among authors: helfand m.Rockville (MD): Agency for Healthcare Research and Quality (US); 2004 Mar.Rockville (MD): Agency for Healthcare Research and Quality (US); 2004 Mar.PMID: 20722120Free Books & Documents.Review.
Nelson HD, Saha S, Helfand M.Nelson HD, et al. Among authors: helfand m.Rockville (MD): Agency for Healthcare Research and Quality (US); 2001 Apr. Report No.: 01-S003.Rockville (MD): Agency for Healthcare Research and Quality (US); 2001 Apr. Report No.: 01-S003.PMID: 20722126Free Books & Documents.Review.
Shipman S, Helfand M, Nygren P, Bougatsos C.Shipman S, et al. Among authors: helfand m.Rockville (MD): Agency for Healthcare Research and Quality (US); 2006 Mar.Rockville (MD): Agency for Healthcare Research and Quality (US); 2006 Mar.PMID: 20722139Free Books & Documents.Review.