TY - GEN AU - Redick,L F TI - Rotating the epidural needle: a caution SN - 0003-2999 PY - 1993///1118 KW - Anesthesia, Epidural KW - instrumentation KW - Anesthesia, Spinal KW - Humans KW - Needles KW - Rotation N1 - Publication Type: Comment; Letter UR - https://doi.org/10.1213/00000539-199311000-00041 ER -