Answer to the letter to the editor of Christensen S et al. concerning "The role of non-rigid cervical collar in pain relief and functional restoration after whiplash injury-a systematic review and a pooled analysis of randomized controlled trials" by Ricciardi L et al. (Eur Spine J; [2019] 28:1821-1828)

Eur Spine J. 2020 May;29(5):1193-1195. doi: 10.1007/s00586-020-06375-x. Epub 2020 Mar 19.

¹ UO di Neurochirurgia, Pia Fondazione di Culto e Religione Cardinal G. Panico, Via Pio X, 4, 73039, Tricase, LE, Italy. ricciardi.lu@gmail.com.
² Department of Anesthesiology and Intensive Care, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
³ Department of Neurosurgery, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.

No abstract available

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