title: Letter to the Editor concerning "Continuous wound infusion of ropivacaine for the control of pain after thoracolumbar spinal surgery: a randomized clinical trial" (by B. Xu, et al. (2015) Eur Spine J; 24: doi 10.1007/s00586-015-3979-x).
authors.affiliation: Department of Pharmacy, Cangzhou Hospital of Integrated Traditional and Western Medicine of Hebei Province, 061001, Cangzhou, Hebei, People's Republic of China. shengtan1986@163.com.
authors.forename: Shengtan
authors.identifier: http://orcid.org/0000-0001-8410-1228
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Department of Pharmacy, Cangzhou Hospital of Integrated Traditional and Western Medicine of Hebei Province, 061001, Cangzhou, Hebei, People's Republic of China.
authors.forename: Xinyu
authors.initials: X
authors.lastname: Lan
authors.affiliation: Department of Pharmacy, Cangzhou Hospital of Integrated Traditional and Western Medicine of Hebei Province, 061001, Cangzhou, Hebei, People's Republic of China.
authors.forename: Shiwei
authors.initials: S
authors.lastname: Chen
authors.affiliation: Department of Pharmacy, Cangzhou Hospital of Integrated Traditional and Western Medicine of Hebei Province, 061001, Cangzhou, Hebei, People's Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: Xiao
authors.affiliation: Department of Anesthesiology, Cangzhou Hospital of Integrated Traditional and Western Medicine of Hebei Province, 061001, Cangzhou, Hebei, People's Republic of China. eyymzk@126.com.
authors.forename: Jishan
authors.initials: J
authors.lastname: Lan