14. Donald Paterson, Sick Children, Cassell, 1956, pp 396, 400.

15. Согласно Полу Ханту (Paul Hunt), a исследователю из Mencap.

16. https://www.genome.gov/26524120/chromosomes- fact-sheet/, accessed 31 January 2018.

17. https://library. down-syndrome.org/en-gb/research- practice/06/1/john-langdon-down-man-message, accessed 31 January 2018.

18. Siddhartha Mukherjee, The Gene: An Intimate History, Bodley Head, 2016, p 267.

19. DA Christie and EM Tansey (eds) (2003) ‘Genetic Testing’, Wellcome Witnesses to Twentieth Century Medicine, vol. 17, Wellcome Trust Centre for the History of Medicine at UCL, p 20.

20. Mukherjee, The Gene, p 267.

21. Carlo Valenti et al., ‘Cytogenetic Diagnosis of Down’s Syndrome in Utero’, Journal of the American Medical Association, 207, 1969.

22. Caroline Ogilvie, ‘Cytogenics’, in Rodeck and Whittle, Foetal Medicine, Churchill Livingstone Elsevier, 2009, pp 305–9.

23. Boaz Weisz and Charles Rodeck, ‘Invasive Diagnostic Procedures’, in Rodeck and Whittle, Foetal Medicine, pp292–5.

24. J Haddow, G Palomaki, J Canick and G Knight, ‘Prenatal Screening for Open Neural Tube Defects and Down’s Syndrome’, in Rodeck and Whittle, Foetal Medicine.

25. Haddow et al., ‘Prenatal Screening for Open Neural Tube Defects and Down’s Syndrome’.