Recommendations marked [2014] and [2006] last had an evidence review in 2014 and 2006 respectively. In some cases, minor changes have been made to the wording for clarity and to bring the language and style up to date, without changing the meaning. Minor changes since publication January 2022: Minor changes to redirect NICE Pathways links. October 2021: We added a link to NICE's shared decision making guideline in recommendation 1.4.2. Accreditation