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Blinding in placebo-controlled trials.

Prasad AS.

Ann Intern Med. 2001 Jun 19;134(12):1150; discussion 1151. No abstract available. PMID: 11412059 [PubMed - indexed for MEDLINE]Related articlesFree article

Blinding in placebo-controlled trials.

Ehrlich GE.

Ann Intern Med. 2001 Jun 19;134(12):1150-1. No abstract available. PMID: 11412060 [PubMed - indexed for MEDLINE]Related articlesFree article

Lessons learned from attempts to establish the blind in placebo-controlled trials of zinc for the common cold.

Desbiens NA.

Ann Intern Med. 2000 Aug 15;133(4):302-3. No abstract available. PMID: 10929173 [PubMed - indexed for MEDLINE]Related articlesFree article

Treatment of naturally acquired common colds with zinc: a structured review.

Caruso TJ, Prober CG, Gwaltney JM Jr.

Clin Infect Dis. 2007 Sep 1;45(5):569-74. Epub 2007 Jul 20. Review.PMID: 17682990 [PubMed - indexed for MEDLINE]Related articles

Zinc lozenges reduce the duration of common cold symptoms.

[No authors listed]

Nutr Rev. 1997 Mar;55(3):82-5. Review.PMID: 9170894 [PubMed - indexed for MEDLINE]Related articles

The problems of taste in placebo matching: an evaluation of zinc gluconate for the common cold.

Farr BM, Gwaltney JM Jr.

J Chronic Dis. 1987;40(9):875-9.PMID: 3298301 [PubMed - indexed for MEDLINE]Related articles

Turning a blind eye: the success of blinding reported in a random sample of randomised, placebo controlled trials.

Fergusson D, Glass KC, Waring D, Shapiro S.

BMJ. 2004 Feb 21;328(7437):432. Epub 2004 Jan 22. Review.PMID: 14761905 [PubMed - indexed for MEDLINE]Related articlesFree article

Why use placebos in clinical trials? A narrative review of the methodological literature.

Vickers AJ, de Craen AJ.

J Clin Epidemiol. 2000 Feb;53(2):157-61. Review.PMID: 10729687 [PubMed - indexed for MEDLINE]Related articles

The landscape and lexicon of blinding in randomized trials.

Schulz KF, Chalmers I, Altman DG.

Ann Intern Med. 2002 Feb 5;136(3):254-9. No abstract available. PMID: 11827510 [PubMed - indexed for MEDLINE]Related articlesFree article

Who is blinded in randomized clinical trials? A study of 200 trials and a survey of authors.

Haahr MT, Hróbjartsson A.

Clin Trials. 2006;3(4):360-5. Review.PMID: 17060210 [PubMed - indexed for MEDLINE]Related articles

Optimization of placebos for double-blind clinical trials. Experience with a phytopharmaceutical.

Knipschild PG, Hoerr R, Oschmann R, van Rossum E, van Dongen MC.

Arzneimittelforschung. 1998 Oct;48(10):1033-6.PMID: 9825123 [PubMed - indexed for MEDLINE]Related articles

How well does blinding work in randomized controlled trials?: a counterpoint.

Boehmer J, Yong P.

Clin Pharmacol Ther. 2009 May;85(5):463-5. No abstract available. PMID: 19381149 [PubMed - indexed for MEDLINE]Related articles

Echinacea for the common cold.

Millea PJ.

Ann Intern Med. 2003 Oct 7;139(7):601; author reply 601. No abstract available. PMID: 14530239 [PubMed - indexed for MEDLINE]Related articlesFree article

Echinacea for the common cold.

Shober S.

Ann Intern Med. 2003 Oct 7;139(7):600; author reply 601. No abstract available. PMID: 14530238 [PubMed - indexed for MEDLINE]Related articlesFree article

Echinacea for the common cold.

Mittman P, Wollner D, Kim L.

Ann Intern Med. 2003 Oct 7;139(7):600-1; author reply 601. No abstract available. PMID: 14530237 [PubMed - indexed for MEDLINE]Related articlesFree article

In the dark: the reporting of blinding status in randomized controlled trials.

Montori VM, Bhandari M, Devereaux PJ, Manns BJ, Ghali WA, Guyatt GH.

J Clin Epidemiol. 2002 Aug;55(8):787-90.PMID: 12384193 [PubMed - indexed for MEDLINE]Related articles

Safety of zinc gluconate glycine (Cold-Eeze) in a geriatric population: a randomized, placebo-controlled, double-blind trial.

Silk R, LeFante C.

Am J Ther. 2005 Nov-Dec;12(6):612-7.PMID: 16280656 [PubMed - indexed for MEDLINE]Related articles

[What treatment for the common cold?]

Vallée JP.

Presse Med. 1999 Mar 13;28(10):533-4. French. No abstract available. PMID: 10209544 [PubMed - indexed for MEDLINE]Related articles

Echinacea no cure-all for kids.

Washam C.

Environ Health Perspect. 2004 Jun;112(8):A466. No abstract available. PMID: 15181890 [PubMed - indexed for MEDLINE]Related articlesFree article

Control group bias in randomized atypical antipsychotic medication trials for schizophrenia.

Woods SW, Gueorguieva RV, Baker CB, Makuch RW.

Arch Gen Psychiatry. 2005 Sep;62(9):961-70. Review.PMID: 16143728 [PubMed - indexed for MEDLINE]Related articlesFree article