1. Is folic acid a risk factor for oral clefts?

   • Andrew E. Czeizel

   COMMENTARY 21 November 2013 Pages: 841 - 843

2. Whole grain and refined grain consumption and the risk of type 2 diabetes: a systematic review and dose–response meta-analysis of cohort studies

   • Dagfinn Aune
   • Teresa Norat
   • Lars J. Vatten

   REVIEW 25 October 2013 Pages: 845 - 858

   

3. Do leukocyte telomere length dynamics depend on baseline telomere length? An analysis that corrects for ‘regression to the mean’

   • Simon Verhulst
   • Abraham Aviv
   • Jeremy D. Kark

   METHODS 30 August 2013 Pages: 859 - 866

   

4. Smoking and multiple sclerosis susceptibility

   • Anna Karin Hedström
   • Jan Hillert
   • Lars Alfredsson

   NEUROEPIDEMIOLOGY Open access 22 October 2013 Pages: 867 - 874

5. Periconceptional folic acid associated with an increased risk of oral clefts relative to non-folate related malformations in the Northern Netherlands: a population based case-control study

   • Anna M. Rozendaal
   • Anthonie J. van Essen
   • Hermien E. K. de Walle

   PERINATAL EPIDEMIOLOGY 04 October 2013 Pages: 875 - 887

6. The Rotterdam Study: 2014 objectives and design update

   • Albert Hofman
   • Sarwa Darwish Murad
   • Meike W. Vernooij

   STUDY UPDATE 21 November 2013 Pages: 889 - 926

   

7. Prevalence of restless legs syndrome among adult population in a Serbian district: a community-based study

   • Tatjana Pekmezovic
   • Jasmina Jovic
   • Vladimir S. Kostic

   Letter to the Editor 22 October 2013 Pages: 927 - 930

   

8. Handwritten versus scanned signature on the invitation letter: does it make any difference in participation in a population-based study?

   • Marcela Fu
   • Jose M. Martínez-Sánchez
   • Esteve Fernández

   Letter to the Editor 01 August 2013 Pages: 931 - 934