Continuation rate of combined hormonal contraception: A prospective multicenter study

1. Lete, I.
2. Pérez-Campos, E.
3. Correa, M.
4. Robledo, J.
5. De La Viuda, E.
6. Martínez, T.
7. Mendoza, N.
8. Parera, N.
9. González, J.V.
10. Gómez, M.A.
11. Castelo-Branco, C.
12. Lobo, P.