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Comparison of two modes of vitamin B12supplementation on neuroconduction and cognitive function among older people living in Santiago, Chile: a cluster randomized controlled trial. a study protocol [ISRCTN 02694183]

  • Hugo Sánchez1Email author,
  • Cecilia Albala1,
  • Lydia Lera1,
  • José Luis Castillo2,
  • Renato Verdugo2,
  • Manuel Lavados2,
  • Eva Hertrampf1,
  • Alex Brito1,
  • Lindsay Allen3 and
  • Ricardo Uauy1, 4
Nutrition Journal201110:100

DOI: 10.1186/1475-2891-10-100

Received: 31 March 2011

Accepted: 27 September 2011

Published: 27 September 2011

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Open Peer Review reports

Pre-publication versions of this article and author comments to reviewers are available by contacting info@biomedcentral.com.

Original Submission
31 Mar 2011 Submitted Original manuscript
Resubmission - Version 2
Submitted Manuscript version 2
16 May 2011 Reviewed Reviewer Report - Robert Clarke
17 May 2011 Reviewed Reviewer Report - Mary Ann Johnson
23 May 2011 Reviewed Reviewer Report - Alan Dangour
Resubmission - Version 3
Submitted Manuscript version 3
5 Aug 2011 Reviewed Reviewer Report - Alan Dangour
6 Aug 2011 Reviewed Reviewer Report - Mary Ann Johnson
12 Sep 2011 Author responded Author comments - Hugo Sanchez
Resubmission - Version 4
12 Sep 2011 Submitted Manuscript version 4
26 Sep 2011 Author responded Author comments - Hugo Sanchez
Resubmission - Version 5
26 Sep 2011 Submitted Manuscript version 5
Publishing
27 Sep 2011 Editorially accepted
27 Sep 2011 Article published 10.1186/1475-2891-10-100

How does Open Peer Review work?

Open peer review is a system where authors know who the reviewers are, and the reviewers know who the authors are. If the manuscript is accepted, the named reviewer reports are published alongside the article. Pre-publication versions of the article and author comments to reviewers are available by contacting info@biomedcentral.com. All previous versions of the manuscript and all author responses to the reviewers are also available.

You can find further information about the peer review system here.

Authors’ Affiliations

(1)
Public Health Nutrition Unit, Institute of Nutrition and Food Technology (INTA), University of Chile
(2)
Department of Neurology, Faculty of Medicine, University of Chile
(3)
Department of Agriculture, Agricultural Research Services, Western Human Nutrition Research Center, University of California
(4)
Department of Nutrition and Public Health Intervention Research, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine

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