1. Aritaki, S., Takagi, A., Someya, H., et al. (1996). Growth hormone neurosecretory dysfunction associated with ring chromosome 18. Acta Paediatrica Japonica, 38, 544–548.
2. Balci, S., Zschocke, J., Kotzot, D., et al. (2014). Formation of a familial ring chromosome 18 investigated by SNP-array analysis. American Journal of Medical Genetics. Part A, 164A, 1854–1856.
3. Baumer, A., Uzielli, M. L. G., Guarducci, S., et al. (2002). Meiotic origin of two ring chromosomes 18 in a girl with developmental delay. American Journal of Medical Genetics, 113, 101–104.
4. Carter, E., Heard, P., Hasi, M., et al. (2015). Ring 18 molecular assessment and clinical consequences. American Journal of Medical Genetics. Part A, 167A, 54–63.
5. Christensen, K. R., Friedrich, U., Jacobsen, P., et al. (1970). Ring chromosome 18 in mother and daughter. Journal of Mental Deficiency Research, 14, 49–67.