1) 和田誠司,左合治彦,松本隆万,他 : 妊娠中期胎児超音波スクリーニング検査による胎児異常検出率.日周産期・新生児会誌40 : 24─27,2004
2) Levi S : Ultrasound in prenatal diagnosis : polemics around routine ultrasound screening for second trimester fetal malformations. Prenat Diagn 22 : 285─295, 2002
3) 左合治彦,林 聡,湊川靖之,他 : 胎児の超音波診断(総説).超音波医学34 : 427─437,2007
4) American College of Obstetricians and Gynecologists : ACOG Practice Bulletin No. 101 : Ultrasonography in pregnancy. Obstet Gynecol 113 : 451─461, 2009
5) 日本超音波医学会 : 超音波胎児計測の標準化と日本人の基準値,2003
6) Tan S, Ipek A : Detailed ultrasound screening in the second trimester : pictorial essay of normal fetal anatomy. J Clin Ultrasound 40 : 280─300, 2012
7) American Institute of Ultrasound in Medicine : AIUM practice guideline for the performance of an antepartum obstetric ultrasound examination. J Ultrasound Med 22 : 157─166, 2010
8) Filly RA, Cardoza JD, Goldstein RB, et al : Detection of fetal central nervous system anomalies : a practical level of effort for a routine sonogram. Radiology 172 : 403─408, 1989
9) Nicolaides KH, Campbell S, Gabbe SG, et al : Ultrasound screening for spina bifida : cranial and cerebellar signs. Lancet 2 : 72─74, 1986
10) Huggon IC, Ghi T, Cook AC, et al : Fetal cardiac abnormalities identified prior to 14 weeks' gestation. Ultrasound Obstet Gynecol 20 : 22─29, 2002