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P. E. Pendeville,
S. Von Montigny,
J. P. Dort
and F. Veyckemans
(2000).
Double-blind randomized study of tramadol vs. paracetamol in analgesia after day-case tonsillectomy in children. European Journal of Anaesthesiology,
17
,
pp 576-582
doi:10.1046/j.1365-2346.2000.00729.x