Chandler, A., Whittaker, A., Cunningham-Burley, S., Williams, N., McGorm, K., & Mathews, G. (2013). Substance, structure and stigma: Parents in the UK accounting for opioid substitution therapy during the antenatal and postnatal periods. International Journal of Drug Policy, 24, e35-e42. https://doi.org/10.1016/j.drugpo.2013.04.004