1Angel IF,Gould ILl Jr,Carey ME. Intrathecal morphine pump as a treatment option in chronic pain of nonmalignant origin. Surg Neurol, 1998, 49 : 92 -98.
2Krames E. Implantable devices for pain control: spinal cord stimulation and intrathecal therapies. Best Pract Res Clin Anaesthesiol,2002,16: 619-649.
3Krames ES, Lanning RM. Intrathecal infusional analgesia for nonmalignant pain : analgesic efficacy of intrathecal opioid with or without bupivacaine. J Pain Symptom Manage, 1993,8:539-548.
4Litman GS, Walker BR,Schneider BE. Reassessment of verbal and visual analog ratings in analgesis studies. Clin Pharmacol Ther, 1985,38 : 16-23.
6Deer T, Winkelmuller W, Erdine S, et al. Intrathecal therapy for cancer and nonmalignant pain: selection and patient management. Neuromodulation, 1999,2 : 55-66.
7Krames ES. Interventional pain management. Appropriate when less invasive therapies fail to provide adequate analgesia. Med-Clin-North-Am, 1999,83:787-808.
