A randomized controlled crossover trial: Lidocaine injected at a 90-degree angle causes less pain than lidocaine injected at a 45-degree angle

作者:Martires Kathryn J; Malbasa Christi L; Bordeaux Jeremy S*
来源:Journal of the American Academy of Dermatology, 2011, 65(6): 1231-1233.
DOI:10.1016/j.jaad.2011.04.011