Albright, 1979, Anesthesiology, 51, 285, 10.1097/00000542-197910000-00001
Di Gregorio, 2010, Reg Anesth Pain Med, 35, 179, 10.1097/AAP.0b013e3181d2310b
Corcoran, 2006, Anesth Analg, 103, 1322, 10.1213/01.ane.0000242515.03653.bb
Butterworth, 2009, Reg Anesth Pain Med, 34, 187, 10.1097/AAP.0b013e31819a2775
Hebl, 2006, Reg Anesth Pain Med, 31, 289, 10.1016/j.rapm.2006.05.001
Mattison, 1891, Med Surg Rep, 115, 645
Mayer, 1924, JAMA, 82, 876, 10.1001/jama.1924.26520370002015c
Moore, 1960, JAMA, 174, 102
Prentice, 1979, Anesthesiology, 50, 51, 10.1097/00000542-197901000-00012
Weinberg, 1998, Anesthesiology, 88, 1071, 10.1097/00000542-199804000-00028
Rosenblatt, 2006, Anesthesiology, 105, 217, 10.1097/00000542-200607000-00033
Drasner, 2010, Reg Anesth Pain Med, 35, 160, 10.1097/AAP.0b013e3181d2306c
Ireland, 1951, Laryngoscope, 61, 767, 10.1288/00005537-195108000-00003
Brown, 1995, Anesth Analg, 81, 321
Auroy, 2002, Anesthesiology, 97, 1274, 10.1097/00000542-200211000-00034
Groban, 2003, Reg Anesth Pain Med, 28, 3, 10.1097/00115550-200301000-00002
Block, 1981, Reg Anesth, 6, 55
Clarkson, 1985, Anesthesiology, 62, 396, 10.1097/00000542-198504000-00006
Valenzuela, 1995, Circulation, 92, 3014, 10.1161/01.CIR.92.10.3014
Bruelle, 1996, Anesth Analg, 82, 648
Feldman, 1989, Anesth Analg, 69, 794
Groban, 2000, Anesth Analg, 91, 1103
Butterworth, 2010, Reg Anesth Pain Med, 35, 167, 10.1097/AAP.0b013e3181d231b9
Moore, 1981, Anesthesiology, 55, 693, 10.1097/00000542-198155060-00018
Mulroy, 2010, Reg Anesth Pain Med, 35, 175
Neal, 2009, Reg Anesth Pain Med, 34, 134, 10.1097/AAP.0b013e31819624eb
Duggan, 2009, Reg Anesth Pain Med, 34, 215, 10.1097/AAP.0b013e31819a9542
Paqueron, 2009, Reg Anesth Pain Med, 34, 290, 10.1097/AAP.0b013e3181ac9be1
Eichenberger, 2009, Reg Anesth Pain Med, 34, 247, 10.1097/AAP.0b013e31819a7225
Rosenberg, 2004, Reg Anesth Pain Med, 29, 564
Pan, 2004, Int J Obstet Anesth, 13, 1073, 10.1016/j.ijoa.2004.04.008
Guay, 2006, Anesth Analg, 102, 921, 10.1213/01.ane.0000196687.88590.6b
Neal, 2003, Reg Anesth Pain Med, 28, 124
Auroy, 1997, Anesthesiology, 87, 479, 10.1097/00000542-199709000-00005
Neal, 2010, Reg Anesth Pain Med, 35, S59, 10.1097/AAP.0b013e3181ccbc96
Barrington, 2009, Reg Anesth Pain Med, 34, 534, 10.1097/AAP.0b013e3181ae72e8
Orebaugh, 2009, Reg Anesth Pain Med, 34, 251, 10.1097/AAP.0b013e3181a3438e
VadeBoncouer, 2008, Reg Anesth Pain Med, 33, 278, 10.1097/00115550-200805000-00020
Zetlaoui, 2008, Anesthesiology, 108, 761, 10.1097/ALN.0b013e3181684c0f
Lee, 2008, Reg Anesth Pain Med, 33, 416
Mulroy, 2002, Reg Anesth Pain Med, 27, 556, 10.1097/00115550-200211000-00008
Moore, 1980, Anesthesiology, 53, 259, 10.1097/00000542-198009000-00020
Heavner, 1992, Anesthesiology, 77, 142, 10.1097/00000542-199207000-00020
Weinberg, 2010, Reg Anesth Pain Med, 35, 186, 10.1097/AAP.0b013e3181d246c3
Weinberg, 2008, Anesthesiology, 108, 907, 10.1097/ALN.0b013e31816d91d2
Di Gregorio, 2009, Crit Care Med, 37, 993, 10.1097/CCM.0b013e3181961a12
Weinberg, 2006, Reg Anesth Pain Med, 31, 296, 10.1097/00115550-200607000-00004
Markowitz, 2009, Reg Anesth Pain Med, 34, 276, 10.1097/AAP.0b013e31819a1323
Charbonneau, 2009, Reg Anesth Pain Med, 34, 277, 10.1097/AAP.0b013e31819340be
Sonsino, 2009, Reg Anesth Pain Med, 34, 276, 10.1097/AAP.0b013e31819bb01d
Ilfeld, 2009, Reg Anesth Pain Med, 34, 85, 10.1097/AAP.0b013e3181962547
Rose, 2005, Reg Anesth Pain Med, 30, 275
