Econometrics in Outcomes Research: The Use of Instrumental Variables
Annual Review of Public Health
http://www.annualreviews.org/doi/abs/10.1146/annurev.publhealth.19.1.17?url_ver=Z39.88-2003&rfr_dat=cr_pub%3Dpubmed&rfr_id=ori%3Arid%3Acrossref.org&journalCode=publhealth