1. Jacobs P, Baikie A, Brown W, Macgregor T, Maclean N, Harnden D: Evidence for the existence of the human "superfemale". Lancet. 1959, 423-425. 10.1016/S0140-6736(59)90415-5.
2. Linden MG, Bender BG, Harmon RJ, Mrazek DA, Robinson A: 47,XXX: what is the prognosis?. Pediatrics. 1988, 82 (4): 619-30.
3. Ratcliffe S: Long-term outcome in children of sex chromosome abnormalities. Arch Dis Child. 1999, 80 (2): 192-5. 10.1136/adc.80.2.192.
4. Robinson A, Bender B, Borelli J, Winter J: Sex chromosome aneuploidy, prospective and longitudinal studies. Edited by: Ratcliffe S, Paul N. 1986, Liss: New York, 23-71.
5. Rovet J, Netley C, Bailey J, Keenan M, Stewart D: Intelligence and achievement in children with extra X aneuploidy: a longitudinal perspective. Am J Med Genet. 1995, 60 (5): 356-63. 10.1002/ajmg.1320600503.