Paper  doi  bibtex   

@article{mackay_opt-out_2015,
	title = {Opt-out and consent},
	volume = {41},
	issn = {0306-6800, 1473-4257},
	url = {http://jme.bmj.com/lookup/doi/10.1136/medethics-2015-102775},
	doi = {10.1136/medethics-2015-102775},
	language = {en},
	number = {10},
	urldate = {2016-03-13TZ},
	journal = {Journal of Medical Ethics},
	author = {MacKay, Douglas},
	month = oct,
	year = {2015},
	pages = {832--835}
}