Link http://www.telegraph.co.uk/health/10389401/Bribing-patients-is-bad-medicine.html

http://fampra.oxfordjournals.org/content/26/3/169.full

http://www.nice.org.uk/nicemedia/live/11754/46461/46461.pdf

http://www.gmc-uk.org/the_meaning_of_fitness_to_practise.pdf_25416562.pdf

http://www.heraldscotland.com/news/health/400-to-quit-smoking-during-pregnancy.16827605

http://www.heraldscotland.com/news/health/400-to-quit-smoking-during-pregnancy.16827605

http://www.controlled-trials.com/isrctn/

http://www.bmj.com/content/347/bmj.f5847?tab=responses

http://jpubhealth.oxfordjournals.org/content/early/2011/03/28/pubmed.fdr030.abstract