Correction of reference Verena Sengpiel, Sahlgrenska Academy 6 June 2014 We have been advised by a reader that one of the references isn't correct. Reference #8 World Health Organization: The world health report 2002. Reducing Risks, Promoting Healthy Life. Geneva, Switzerland: World Health Organization; 2002. should be replaced by the following reference: World Health Organization, Regional Office for Europe, Nutrition and Food Security: Some substances may harm your baby. In: Healthy Eating during Pregnancy and Breastfeeding, Booklet for mothers. World Health Organization; 2001:17-18. [http://www.euro.who.int/__data/assets/pdf_file/0020/120296/E73182.pdf] Competing interests No competing interets.