Table of contents

Original articles

• Effects of PCBs, p,p′-DDT, p,p′-DDE, HCB and β-HCH on thyroid function in preschool children (12 October, 2007)

  M Álvarez-Pedrerol, N Ribas-Fitó, M Torrent, D Carrizo, J O Grimalt, J Sunyer
• Size distribution and total number concentration of ultrafine and accumulation mode particles and hospital admissions in children and the elderly in Copenhagen, Denmark (7 November, 2007) Free

  Z J Andersen, P Wahlin, O Raaschou-Nielsen, M Ketzel, T Scheike, S Loft
• Developing common metrics of mechanical exposures across aetiological studies of low back pain in working populations for use in meta-analysis (8 November, 2007)

  L E Griffith, R P Wells, H S Shannon, S D Walter, D C Cole, S Hogg-Johnson, on behalf of the Meta-Analysis of Pain in the Lower Back and Work Exposures (MAPLE) Collaborative Group
• Low organic solvent exposure and combined maternal–infant gene polymorphisms affect gestational age (10 December, 2007)

  X Qin, Y Wu, W Wang, T Liu, L Wang, Y Hu, D Chen
• Moulds, bacteria and cancer among Finns: an occupational cohort study (21 November, 2007)

  A Laakkonen, P K Verkasalo, A Nevalainen, T Kauppinen, P Kyyrönen, E I Pukkala
• Frequent and long-term absence as a risk factor for work disability and job termination among employees in the private sector (21 November, 2007)

  P C Koopmans, C A M Roelen, J W Groothoff