SOBRINA Spanish study-analysing the frequency, cost and adverse events associated with overuse in primary care: Protocol for a retrospective cohort study

1. Mira, J.J.
2. Carrillo, I.
3. Gea Velázquez De Castro, M.T.
4. Silvestre, C.
5. Olivera, G.
6. Caro-Mendivelso, J.
7. Pérez-Pérez, P.
8. Agra, Y.
9. Fernández, A.M.
10. Aranaz-Andrés, J.M.