Gaya APA

Farquhar-Smith, P., Chapman, S. (2012). Neuraxial (epidural and intrathecal) opioids for intractable pain ((2012), 6(1)). : SAGE.

Gaya MLA

Farquhar-Smith, Paul., Chapman, Suzanne. "Neuraxial (epidural and intrathecal) opioids for intractable pain". (2012), 6(1) : SAGE, 2012. e-journal.