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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1998 3
1999 3
2000 4
2001 2
2002 3
2003 9
2004 9
2005 18
2006 6
2007 8
2008 2
2009 4
2010 4
2011 4
2012 6
2013 4
2014 3
2015 2
2016 2
2017 1
2018 1
2019 4
2020 2
2021 0
Text availability
Article attribute
Article type
Publication date

Similar articles for PMID: 17548849

101 results
Results by year
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Page 1
Placebo effects and the common cold: a randomized controlled trial.
Barrett B, Brown R, Rakel D, Rabago D, Marchand L, Scheder J, Mundt M, Thomas G, Barlow S. Barrett B, et al. Ann Fam Med. 2011 Jul-Aug;9(4):312-22. doi: 10.1370/afm.1250. Ann Fam Med. 2011. PMID: 21747102 Free PMC article. Clinical Trial.
Echinacea for treating the common cold: a randomized trial.
Barrett B, Brown R, Rakel D, Mundt M, Bone K, Barlow S, Ewers T. Barrett B, et al. Ann Intern Med. 2010 Dec 21;153(12):769-77. doi: 10.7326/0003-4819-153-12-201012210-00003. Ann Intern Med. 2010. PMID: 21173411 Free PMC article. Clinical Trial.
Echinacea for preventing and treating the common cold.
Karsch-Völk M, Barrett B, Kiefer D, Bauer R, Ardjomand-Woelkart K, Linde K. Karsch-Völk M, et al. Cochrane Database Syst Rev. 2014 Feb 20;2(2):CD000530. doi: 10.1002/14651858.CD000530.pub3. Cochrane Database Syst Rev. 2014. PMID: 24554461 Free PMC article. Review.
Echinacea for preventing and treating the common cold.
Linde K, Barrett B, Wölkart K, Bauer R, Melchart D. Linde K, et al. Cochrane Database Syst Rev. 2006 Jan 25;(1):CD000530. doi: 10.1002/14651858.CD000530.pub2. Cochrane Database Syst Rev. 2006. PMID: 16437427 Updated. Review.
101 results
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