Joanne E Given research associate, Maria Loane reader in public health, Ester Garne consultant paediatrician, Marie-Claude Addor clinical geneticist, Marian Bakker epidemiologist, Bénédicte Bertaut-Nativel midwife et al
Given J E, Loane M, Garne E, Addor M, Bakker M, Bertaut-Nativel B et al.
Metformin exposure in first trimester of pregnancy and risk of all or specific congenital anomalies: exploratory case-control study
BMJ 2018; 361 :k2477
doi:10.1136/bmj.k2477