Willis, Richard

Postoperative Pain Control with Methadone: Influence of Supplementary Methadone Doses and Blood Concentration—Response Relationships 

Gourlay, Geoffrey K., Pharm, B., Willis, Richard, Wilson, Peter R.

Anesthesiology | September 24, 2009 | Volume: 61 | Issue: 1 | Pages: 19-26

10.1097/00000542-198407000-00005