Pasternak GW (2010). „Molecular insights into mu opioid pharmacology: From the clinic to the bench”. Clin J Pain. 26 Suppl 10: S3—9. PMID20026962. doi:10.1097/AJP.0b013e3181c49d2e.
nih.gov
ncbi.nlm.nih.gov
Chevlen E (2003). „Opioids: a review”. Curr Pain Headache Rep. 7 (1): 15—23. PMID12525266.
Pasternak GW (2010). „Molecular insights into mu opioid pharmacology: From the clinic to the bench”. Clin J Pain. 26 Suppl 10: S3—9. PMID20026962. doi:10.1097/AJP.0b013e3181c49d2e.