Links
[1] https://www.ctsnet.org/jans/politics-destroying-british-heart-surgery-stephen-westaby-speaks-out
[2] https://www.ctsnet.org/home/joeldunning
[3] http://www.bbc.co.uk/news/av/health-39596492/politics-is-destroying-heart-surgery
[4] https://www.ctsnet.org/taxonomy/cardiac
[5] https://www.ctsnet.org/categories/cardiac
[6] https://www.ctsnet.org/taxonomy2018/cardiac