Nüesch, E., Rutjes, A. W. S., Husni, E., Welch, V. and Jüni, P. (2009) “Oral or transdermal opioids for osteoarthritis of the knee or hip”, São Paulo Medical Journal, 127(6), p. 388. Available at: https://periodicosapm.emnuvens.com.br/spmj/article/view/1917 (Accessed: 15 October 2025).