We found that dot-imprints on cartridge case shoulder,pressing and scraping prints on the edge of cartridge case bottom and marks on the hook of cartridge-case-extractor are all related to the shooting .

A Discussion about the Criminal Psychology Reflected by the Trace on the Scene;

The application of repeated tissue expansion in repairing large cicatricial baldness;

Objective To sum up the experience of multi-spot skin expander for alopecia cicatrisata,to explore a more effective and safer method.