A randomized, double-blind, crossover comparison of the efficacy and safety of oral controlled-release tramadol and placebo in patients with painful osteoarthritis

Por Thorne, Carter, Beaulieu, André D, Callaghan, Denis J, O’Mahony, William F, Bartlett, John M, Knight, Richard, Kraag, Gunnar R, Akhras, Ronald, Piraino, Paula S, Eisenhoffer, John, Harsanyi, Zoltan, Darke, Andrew C
Publicado em 2008