RT Journal Article SR Electronic T1 A prospective, randomized, double blind comparison between levobupivacaine and ropivacaine for outpatient knee arthroscopy: 109. JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP 8 OP 8 DO 10.1136/rapm-00115550-200409002-00015 VO 29 IS Suppl 2 A1 Cappelleri, G A1 Casati, A A1 Mamo, D A1 Spreafico, E A1 Marchetti, C YR 2004 UL http://rapm.bmj.com/content/29/Suppl_2/8.2.abstract AB