1. Interscalene block for pain relief after shoulder surgery. A prospective randomized study;Kinnard;Clin Orthop,1994
2. Interscalene block for shoulder arthroscopy: comparison with general anesthesia;Brown;Arthroscopy,1993
3. A retrospective comparison of interscalene block and general anesthesia for ambulatory surgery shoulder arthroscopy;D’Alessio;Reg Anesth,1995
4. Physiologic effects of regional block;Brown,1996
5. The value of “multimodal” or “balanced analgesia” in postoperative pain treatment;Kehlet;Anesth Analg,1993