1. Adler, B., & Kushnick, T. (1982). Genetic counseling in prenatally diagnosed trisomy 18 and 21: Psychosocial aspects. Pediatrics, 69, 94–99.
2. Alizad, A., & Seward, J. B. (2000). Echocardiographic features of genetic diseases: part 7. Complex genetic disorders. Journal of the American Society of Echocardiography, 13, 707–714.
3. Bass, H. N., Fox, M., Wulfsberg, E., et al. (1982). Trisomy 18 mosaicism: Clues to the diagnosis. Clinical Genetics, 22, 327–330.
4. Baty, B. J., Blackburn, B. L., & Carey, J. C. (1994a). Natural history of trisomy 18 and trisomy 13: I. Growth, physical assessment, medical histories, survival, and recurrence risk. American Journal of Medical Genetics, 49, 175–188.
5. Baty, B. J., Jorde, L. B., & Blackburn, B. L. (1994b). Natural history of trisomy 18 and trisomy 13: II. Psychomotor development. American Journal of Medical Genetics, 49, 189–194.