Thoracic Paravertebral Block: Influence of the Number of Injections
Zoher M. Naja, Mariam El-Rajab, Mohamad A. Al-Tannir, Fouad M. Ziade, Khalil Tayara, Fadi Younes, Per-Arne Lönnqvist
Regional Anesthesia & Pain Medicine May 2006, 31 (3) 196-201; DOI: 10.1016/j.rapm.2005.12.004