TY - JOUR T1 - Correction: <em>Cervical plexus and greater occipital nerve blocks: controversies and technique update</em> JF - Regional Anesthesia &amp; Pain Medicine JO - Reg Anesth Pain Med SP - 820 LP - 820 DO - 10.1136/rapm-2018-100261corr1 VL - 44 IS - 8 A2 - , Y1 - 2019/08/01 UR - http://rapm.bmj.com/content/44/8/820.abstract N2 - ER -