Stirrat G M, Gough J D, Bullock S, Wald N J, Cuckle H S
Br J Obstet Gynaecol. 1981 Mar;88(3):231-5. doi: 10.1111/j.1471-0528.1981.tb00973.x.
Six women who had an ultrasound scan examination in early pregnancy on account of a high serum alpha-fetoprotein level were noted to have little or no amniotic fluid. This paper gives details of the six pregnancies, two of which were extrauterine; only one of the six infants survived.