Barnhart KT, Hansen KR, Stephenson MD, Usadi R, Steiner AZ, Cedars MI, Jungheim ES, Hoeger KM, Krawetz SA, Mills B, Alston M, Coutifaris C, Senapati S, Sonalkar S, Diamond MP, Wild RA, Rosen M, Sammel MD, Santoro N, Eisenberg E, Huang H, Zhang H, Legro R, Guzick D, Branum A, Goldman M, Redmon B, Thomas M, Witter F, Brannigan R, Cato P, Coney P, Inoue L, Missmer S. Effect of an Active vs Expectant Management Strategy on Successful Resolution of Pregnancy Among Patients With a Persisting Pregnancy of Unknown Location. JAMA 2021, 326: 390-400. PMID: 34342619, PMCID: PMC8335579, DOI: 10.1001/jama.2021.10767.Peer-Reviewed Original Research