TY - RPRT TI - Factors affecting cerebrospinal fluid flow in two spinal needles. AU - F M Messahel AU - J S Robinson AU - E T Mathews PY - 1983 DO - 10.1093/bja/55.2.169 UR - https://pubmed.ncbi.nlm.nih.gov/6830679/ ID - 6830679 ER -