Usefulness of transdermal fentanyl in the management of nonmalignant chronic pain: A prospective, observational, multicenter study

1. Franco, M.L.
2. Seoane, A.
3. Jesús Berro, M.
4. Calvo, I.
5. Pezonaga, L.
6. Sulleiro, R.
7. Seoane, A.
8. Carceller, J.M.
9. Santilla, R.
10. Sarabia, A.
11. Torre, F.
12. Barez, E.
13. Marín, M.
14. Callejo, A.
15. Dinten, M.J.
16. Fidalgo, I.