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Brown: Atlas of Regional Anesthesia, 3rd ed.,
Copyright © 2006 Saunders, An Imprint of Elsevier
Frontal, oblique, and lateral views of common spinal needles. A, Sprotte needle. B, Whitacre needle. C, Greene needle. D, Quincke needle. (A–D From Brown DL: Regional Anesthesia and Analgesia. Philadelphia, W.B. Saunders, 1996. By permission of the Mayo Foundation.)