Gaya APA

l, P, G. et al (2014). expectations and positive emotional feelings accompany reductions in ongoing and evoked neuropathic pain following placebo interventions . washinton: PAIN.

Gaya MLA

l, Petersen, Gitte. et al. "expectations and positive emotional feelings accompany reductions in ongoing and evoked neuropathic pain following placebo interventions". washinton: PAIN, 2014. Artikel.