Ephedrine as a Marker of Intravascular Injection in Laboring Parturients
Sundararaj R. Cherala, Rinaldo Greene, Dhirendra Mehta
Regional Anesthesia: The Journal of Neural Blockade in Obstetrics, Surgery, & Pain Control Jan 1990, 15 (1) 15-18; DOI: 10.1136/rapm-00115550-199015010-00005