1. US Government Accountability Office. Prenatal drug use and newborn health: federal efforts need better planning and coordination. Available at: gao.gov/products/GAO-15-203. Accessed December 2, 2016.
2. Opioid abuse and dependence during pregnancy: temporal trends and obstetrical outcomes;Maeda;Anesthesiology,2014
3. Maternal opioid use during pregnancy and its impact on perinatal morbidity, mortality, and the cost of medical care in the United States;Whiteman;J Pregnancy,2014
4. Neonatal abstinence syndrome and associated health care expenditures: United States, 2000-2009;Patrick;JAMA,2012
5. The effects of methadone dose regimen on neonatal abstinence syndrome;McCarthy;J Addict Med,2015