This website is provided for information purposes only and while every effort has been made to ensure that information is accurate and up-to-date, the Medical Research Council Epidemiology Unit (hereafter referred to as ‘the Unit’) cannot guarantee accuracy and is not responsible for any errors or omissions. The Unit is not liable for any damages whatsoever in connection with the use of this website.

The Unit is not a hospital or clinical facility and does not diagnose illness or provide treatment or medication. Please consult your health care provider for advice on health matters.

This website contains links to websites operated by other parties. The inclusion of such links on the Unit’s website does not imply endorsement of any or all of the material or opinion expressed on these websites, or of the other parties. The Unit does not control such websites, is not responsible for the content on them, and will admit no liability for their use.