Nifedipine (versus unexposed)

Study	Reference
Vermes, 2015	Vermes Maternal factors in the origin of isolated oesophageal atresia: A population-based case-control study. Birth Defects Res. Part A Clin. Mol. Teratol. 2015; 103:804-13
Weber-Schoendorfer, 2008	Weber-Schoendorfer C The safety of calcium channel blockers during pregnancy: a prospective, multicenter, observational study. Reprod Toxicol 2008;26:24-30
Zarante, 2009	Zarante Impact and risk factors of craniofacial malformations in a Colombian population. Int. J. Pediatr. Otorhinolaryngol. 2009; 73:1434-7