Is folic acid a risk factor for oral clefts? Andrew E. Czeizel COMMENTARY 21 November 2013 Pages: 841 - 843
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 AuneTeresa NoratLars J. Vatten REVIEW 25 October 2013 Pages: 845 - 858
Do leukocyte telomere length dynamics depend on baseline telomere length? An analysis that corrects for ‘regression to the mean’ Simon VerhulstAbraham AvivJeremy D. Kark METHODS 30 August 2013 Pages: 859 - 866
Smoking and multiple sclerosis susceptibility Anna Karin HedströmJan HillertLars Alfredsson NEUROEPIDEMIOLOGY Open access 22 October 2013 Pages: 867 - 874
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. RozendaalAnthonie J. van EssenHermien E. K. de Walle PERINATAL EPIDEMIOLOGY 04 October 2013 Pages: 875 - 887
The Rotterdam Study: 2014 objectives and design update Albert HofmanSarwa Darwish MuradMeike W. Vernooij STUDY UPDATE 21 November 2013 Pages: 889 - 926
Prevalence of restless legs syndrome among adult population in a Serbian district: a community-based study Tatjana PekmezovicJasmina JovicVladimir S. Kostic Letter to the Editor 22 October 2013 Pages: 927 - 930
Handwritten versus scanned signature on the invitation letter: does it make any difference in participation in a population-based study? Marcela FuJose M. Martínez-SánchezEsteve Fernández Letter to the Editor 01 August 2013 Pages: 931 - 934