[1]
Wilcox AJ, Weinberg CR, O'Connor JF, Baird DD, Schlatterer JP, Canfield RE, Armstrong EG, Nisula BC. Incidence of early loss of pregnancy. The New England journal of medicine. 1988 Jul 28:319(4):189-94
[PubMed PMID: 3393170]
[2]
Zinaman MJ, Clegg ED, Brown CC, O'Connor J, Selevan SG. Estimates of human fertility and pregnancy loss. Fertility and sterility. 1996 Mar:65(3):503-9
[PubMed PMID: 8774277]
[3]
Kanmaz AG, İnan AH, Beyan E, Budak A. The effects of threatened abortions on pregnancy outcomes. Ginekologia polska. 2019:90(4):195-200. doi: 10.5603/GP.a2019.0035. Epub 2019 Mar 22
[PubMed PMID: 30901073]
[4]
Birch JD, Gulati D, Mandalia S. Cervical shock: a complication of incomplete abortion. BMJ case reports. 2017 Jul 14:2017():. pii: bcr-2017-220452. doi: 10.1136/bcr-2017-220452. Epub 2017 Jul 14
[PubMed PMID: 28710197]
Level 3 (low-level) evidence
[5]
Wyatt PR, Owolabi T, Meier C, Huang T. Age-specific risk of fetal loss observed in a second trimester serum screening population. American journal of obstetrics and gynecology. 2005 Jan:192(1):240-6
[PubMed PMID: 15672031]
[6]
Nybo Andersen AM, Wohlfahrt J, Christens P, Olsen J, Melbye M. Maternal age and fetal loss: population based register linkage study. BMJ (Clinical research ed.). 2000 Jun 24:320(7251):1708-12
[PubMed PMID: 10864550]
[7]
Regan L, Braude PR, Trembath PL. Influence of past reproductive performance on risk of spontaneous abortion. BMJ (Clinical research ed.). 1989 Aug 26:299(6698):541-5
[PubMed PMID: 2507063]
[8]
Dogra V, Paspulati RM, Bhatt S. First trimester bleeding evaluation. Ultrasound quarterly. 2005 Jun:21(2):69-85; quiz 149-50, 153-4
[PubMed PMID: 15905817]
[9]
Giacomello F, Magliocchetti P, Loyola G, Giovarruscio M. [Serum beta hCG levels and transvaginal echography in the early phases of pregnancy]. Minerva ginecologica. 1993 Jul-Aug:45(7-8):333-7
[PubMed PMID: 8414139]
[10]
Doubilet PM, Benson CB, Bourne T, Blaivas M, Society of Radiologists in Ultrasound Multispecialty Panel on Early First Trimester Diagnosis of Miscarriage and Exclusion of a Viable Intrauterine Pregnancy, Barnhart KT, Benacerraf BR, Brown DL, Filly RA, Fox JC, Goldstein SR, Kendall JL, Lyons EA, Porter MB, Pretorius DH, Timor-Tritsch IE. Diagnostic criteria for nonviable pregnancy early in the first trimester. The New England journal of medicine. 2013 Oct 10:369(15):1443-51. doi: 10.1056/NEJMra1302417. Epub
[PubMed PMID: 24106937]
[11]
. The American College of Obstetricians and Gynecologists Practice Bulletin no. 150. Early pregnancy loss. Obstetrics and gynecology. 2015 May:125(5):1258-1267. doi: 10.1097/01.AOG.0000465191.27155.25. Epub
[PubMed PMID: 25932865]
[12]
Luise C, Jermy K, May C, Costello G, Collins WP, Bourne TH. Outcome of expectant management of spontaneous first trimester miscarriage: observational study. BMJ (Clinical research ed.). 2002 Apr 13:324(7342):873-5
[PubMed PMID: 11950733]
Level 2 (mid-level) evidence
[13]
Zhang J, Gilles JM, Barnhart K, Creinin MD, Westhoff C, Frederick MM, National Institute of Child Health Human Development (NICHD) Management of Early Pregnancy Failure Trial. A comparison of medical management with misoprostol and surgical management for early pregnancy failure. The New England journal of medicine. 2005 Aug 25:353(8):761-9
[PubMed PMID: 16120856]
[14]
Empson M, Lassere M, Craig J, Scott J. Prevention of recurrent miscarriage for women with antiphospholipid antibody or lupus anticoagulant. The Cochrane database of systematic reviews. 2005 Apr 18:2005(2):CD002859
[PubMed PMID: 15846641]
Level 1 (high-level) evidence
[15]
de Jong PG, Kaandorp S, Di Nisio M, Goddijn M, Middeldorp S. Aspirin and/or heparin for women with unexplained recurrent miscarriage with or without inherited thrombophilia. The Cochrane database of systematic reviews. 2014 Jul 4:2014(7):CD004734. doi: 10.1002/14651858.CD004734.pub4. Epub 2014 Jul 4
[PubMed PMID: 24995856]
Level 1 (high-level) evidence
[16]
Curtis KM, Tepper NK, Jatlaoui TC, Berry-Bibee E, Horton LG, Zapata LB, Simmons KB, Pagano HP, Jamieson DJ, Whiteman MK. U.S. Medical Eligibility Criteria for Contraceptive Use, 2016. MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports. 2016 Jul 29:65(3):1-103. doi: 10.15585/mmwr.rr6503a1. Epub 2016 Jul 29
[PubMed PMID: 27467196]
[17]
Sharp HT, Johnson JV, Lemieux LA, Currigan SM. Executive Summary of the reVITALize Initiative: Standardizing Gynecologic Data Definitions. Obstetrics and gynecology. 2017 Apr:129(4):603-607. doi: 10.1097/AOG.0000000000001939. Epub
[PubMed PMID: 28277367]
[18]
Quenby S, Gallos ID, Dhillon-Smith RK, Podesek M, Stephenson MD, Fisher J, Brosens JJ, Brewin J, Ramhorst R, Lucas ES, McCoy RC, Anderson R, Daher S, Regan L, Al-Memar M, Bourne T, MacIntyre DA, Rai R, Christiansen OB, Sugiura-Ogasawara M, Odendaal J, Devall AJ, Bennett PR, Petrou S, Coomarasamy A. Miscarriage matters: the epidemiological, physical, psychological, and economic costs of early pregnancy loss. Lancet (London, England). 2021 May 1:397(10285):1658-1667. doi: 10.1016/S0140-6736(21)00682-6. Epub 2021 Apr 27
[PubMed PMID: 33915094]
Level 2 (mid-level) evidence