{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,9]],"date-time":"2026-11-09T12:09:18Z","timestamp":1794226158749,"version":"4.8.0"},"reference-count":32,"publisher":"Massachusetts Medical Society","issue":"24","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["N Engl J Med"],"published-print":{"date-parts":[[2021,6,17]]},"DOI":"10.1056\/nejmoa2104983","type":"journal-article","created":{"date-parts":[[2021,4,21]],"date-time":"2021-04-21T17:01:05Z","timestamp":1619024465000},"page":"2273-2282","source":"Crossref","is-referenced-by-count":791,"title":["Preliminary Findings of mRNA Covid-19 Vaccine Safety in Pregnant Persons"],"prefix":"10.1056","volume":"384","author":[{"given":"Tom T.","family":"Shimabukuro","sequence":"first","affiliation":[{"name":"From the Immunization Safety Office, Division of Healthcare Quality Promotion (T.T.S., T.R.M., P.L. Moro, L.P., P.L. 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Marquez, C.K.O., C.L., B.C.Z., J.M.G.), and the Arboviral Diseases Branch, Division of Vector-Borne Diseases (S.W.M.), National Center for Emerging and Zoonotic Infectious Diseases, the Division of Birth Defects and Infant Disorders, National Center on Birth Defects and Developmental Disabilities (S.Y.K., V.K.B., C.J.G., D.M.M.-D.), the Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion (T.O., K.T.C., S.R.E., A.N.S.), the World Trade Center Health Program, National Institute for Occupational Safety and Health (R.L.), and the Epidemic Intelligence Service (K.T.C.) \u2014 all at the Centers for Disease Control and Prevention, Atlanta; and the Division of Epidemiology, Office of Biostatistics and Epidemiology, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD (M.A., A.M.-J.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paige L.","family":"Marquez","sequence":"additional","affiliation":[{"name":"From the Immunization Safety Office, Division of Healthcare Quality Promotion (T.T.S., T.R.M., P.L. 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