Factors associated with second-hand smoke exposure in non-smoking pregnant women in Spain: Self-reported exposure and urinary cotinine levels

1. Aurrekoetxea, J.J.
2. Murcia, M.
3. Rebagliato, M.
4. Fernández-Somoano, A.
5. Castilla, A.M.
6. Guxens, M.
7. López, M.J.
8. Lertxundi, A.
9. Espada, M.
10. Tardón, A.
11. Ballester, F.
12. Santa-Marina, L.