Safety concerns for the use of calcium channel blockers in pregnancy for the treatment of spontaneous preterm labour and hypertension: A systematic review and meta-regression analysis

1. Khan, K.
2. Zamora, J.
3. Lamont, R.F.
4. Van Geijn Hp, H.
5. Svare, J.
6. Santos-Jorge, C.
7. Jacquemyn, Y.
8. Husslein, P.
9. Helmer H, H.
10. Dudenhausen, J.
11. Di Renzo, G.C.
12. Roura, L.C.
13. Beattie, B.