Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Apr 1985, 10 (2) 76-81; DOI: 10.1136/rapm-00115550-198510020-00005
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Jan 1982, 7 (1) 20-25; DOI: 10.1136/rapm-00115550-198207010-00007