Indirect Sonographic Guidance for Epidural Anesthesia in Obese Pregnant Patients
Donald H. Wallace, Rigoberto Santos, John M. Currie, Larry C. Gilstrap
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Jul 1992, 17 (4) 233-236; DOI: 10.1136/rapm-00115550-199217040-00011