Retrospective study of the parental origin of the extra chromosome in trisomy 18 (Edwards syndrome)

Nothen, M. M., Eggermann, T., Erdmann, J., Eiben, B., Hofmann, D., Propping, P., Schwanitz, G.

Hum Genet. 1993 Oct;92(4):347-9.

http://www.ncbi.nlm.nih.gov/pubmed/8225314