nayana-c1.867c992ae9100904cc61c84591adf0f8f863e0387e30f0d0dbc86640e9f50a1a.en.validation.34107

The task

Which of the following is consistent with the findings of Hsieh et al. regarding the reduction of low back pain? A. Local supplementation of lidocaine reduced the incidence of low back pain after lumbar epidural analgesia. B. Local supplementation of ketoprofen reduced the incidence of low back pain after lumbar epidural analgesia. C. Local supplementation of aspirin reduced the incidence of low back pain after lumbar epidural analgesia. D. Local supplementation of bradykinin reduced the incidence of low back pain after lumbar epidural analgesia. Return only the single uppercase letter of the correct option.