TY - RPRT TI - Modification of Cloward cervical retractor. Technical note. AU - L G Leibrock AU - B M Berman PY - 1984 DO - 10.3171/jns.1984.61.1.0193 UR - https://pubmed.ncbi.nlm.nih.gov/6726400/ ID - 6726400 ER -