Use of strong opioids for chronic pain in osteoarthritis: an insight into the Latin American reality

1. Ruiz Iban, M.A.
2. Benavides, J.
3. Forero, J.P.
4. Bittelman, S.
5. Martinez, R.
6. Mite, M.A.
7. Diaz Heredia, J.
8. Ulloa, S.
9. Lizárraga Ferrand, M.M.