[Independent.ie] , Knapton, Sarah Drinking alcohol causes cancer by 'damaging DNA'. (05 Jan 2018)

[Independent.ie] , Knapton, Sarah E-cigarettes 'not safe' for young and can lead to addiction, warns expert. (09 Dec 2016)

[Independent.ie] , Knapton, Sarah Two hours of exercise a week can offset perils of alcohol. (08 Sep 2016)

[The Telegraph] , Knapton, Sarah World Health Organisation: E-cigarettes are harmful to health and are not safe. (21 Jan 2020)