TY - JOUR KW - Electronic Health Data KW - Pregnancy KW - primary care AU - J. Campbell AU - H. Shepherd AU - S. Welburn AU - R. Barnett AU - J. Oyinlola AU - N. Oues AU - R. Williams AD - Clinical Practice Research Datalink (CPRD) Medicines and Healthcare Products Regulatory Agency, 10 South Colonnade, Canary Wharf, London, United Kingdom. AN - 36522838 BT - Pharmacoepidemiol Drug Saf DO - 10.1002/pds.5584 DP - NLM ET - 2022/12/17 LA - eng N1 - 1099-1557 Campbell, Jennifer Orcid: 0000-0002-0684-4437 Shepherd, Hilary Welburn, Stephen Barnett, Rhys Oyinlola, Jessie Oues, Namir Williams, Rachael Orcid: 0000-0001-9007-6292 Journal Article England Pharmacoepidemiol Drug Saf. 2022 Dec 15. doi: 10.1002/pds.5584. PY - 2022 SN - 1053-8569 T2 - Pharmacoepidemiol Drug Saf TI - Methods to refine and extend a Pregnancy Register in the UK Clinical Practice Research Datalink primary care databases ER -