Mu-opioid receptors in ganglia, but not in muscle, mediate peripheral analgesia in rat muscle pain

1. Bagues, A.
2. Martín, M.I.
3. Higuera-Matas, A.
4. Esteban-Hernández, J.
5. Ambrosio, E.
6. María Sánchez-Robles, E.