@article {7713,
	title = {Referral Patterns and Reasons for Referral Among Primary Care and Specialist Physicians},
	journal = {Journal of General Internal Medicine},
	volume = {Epub Sept. 16},
	year = {2011},
	type = {Journal article},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/21922159},
	author = {Barnett, ML and Keating, NL and Christakis, NA and O{\textquoteright}Malley, AJ and Landon, BE}
}
