Dutch mothers search for adopted children's Chinese parents

Erika Olzheim-Smit and Andrea de Baar-Smit are twin sisters from the Netherlands. They have much in common, including both having adopted Chinese children.

This has brought them to China several times in recent years, including their most recent trip in May, in an attempt to find the biological parents of their adopted children.

Olzheim-Smit, 50, and a mother of four, has an adopted daughter named Callista, who is believed to have been born on Dec 26, 2002.