Two Women Don't Match Their Kids' DNA -- It's a Medical Mystery
http://abcnews.go.com/Primetime/story?id=2315693&page=1Brief Report:Disputed Maternity Leading to Identification of Tetragametic Chimerism
Yu N., Kruskall M. S., Yunis J. J., Knoll J. H.M., Uhl L., Alosco S., Ohashi M., Clavijo O., Husain Z., Yunis E. J., Yunis J. J., Yunis E. J.
N Engl J Med 2002; 346:1545-1552, May 16, 2002.