RT Journal Article SR Electronic T1 Ultrasound-Guided Transsartorial Perifemoral Artery Approach for Saphenous Nerve Block JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 177-178 OP 177-178 DO 10.1097/AAP.0b013e31819a273e VO 34 IS 2 A1 Ban C. H. Tsui A1 Timur Özelsel YR 2009 UL http://rapm.bmj.com/content/34/2/177-178.abstract AB