Comment on

• Ultrasonographic guidance reduces the amount of local anesthetic for 3-in-1 blocks.

  Marhofer P, Schrögendorfer K, Wallner T, Koinig H, Mayer N, Kapral S. Marhofer P, et al. Reg Anesth Pain Med. 1998 Nov-Dec;23(6):584-8. doi: 10.1016/s1098-7339(98)90086-4. Reg Anesth Pain Med. 1998. PMID: 9840855 Clinical Trial.
• Spinal cord neural anatomy in rats examined by in vivo magnetic resonance microscopy.

  Benveniste H, Qui H, Hedlund LW, D'Ercole F, Johnson GA. Benveniste H, et al. Reg Anesth Pain Med. 1998 Nov-Dec;23(6):589-99. doi: 10.1016/s1098-7339(98)90087-6. Reg Anesth Pain Med. 1998. PMID: 9840856