[Review of global activities and events for DNA 50 years].

In 25, April, 1953, the paper discovering DNA double helix by Watson and Crick published in Nature, it is a great event for finding life secret in mankind history. This year is 50th anniversary of the event. Scientists in the world including in China have a lot of memorial activities to review research results obtained in past 50 years and to prospect developments in next 50 years.

[Research report of experimental database establishment of digitized virtual Chinese No.1 female].

Objective: To establish digitized virtual Chinese No.1 female (VCH-F1) image database.

Methods: A 19 years old female cadaver was scanned by CT, MRI, and perfused with red filling material through formal artery before freezing and em- bedding.