1. 2. MJ Cousins, and PHO Bridenbauch. Neural blockade in clinical anesthesia and management of pain . Philadelphia: Lippincott, 1980 : 232 -3 .
2. Interscalene Brachial Plexus Block
3. 5. MJ Cousins, and PO Bridenbaugh. Neural blockade in clinical anesthesia and management of pain . Philadelphia: Lippincott, 1980, 569 -70 .