1. Summary of SARS case by country, World Health Organization (September 2003), http://www.who.int/csr/sars
2. SARS Reference book (ver.3), Kamps Hoffmann, Flying Publisher (October 2003)
3. Early Advise of Monitoring the Infectious Atypical Pneumonia, the Ministry of Health of China (November 2003), http://www.moh.gov.cn
4. Ahuja, A.T., et al.: Radiological Appearance of Recent Cases of Atypical Pneumonia in Hong Kong. Radiological Department of Chinese Univerisity of Hong Kong (October 2003), http://www.droid.cuhk.edu.hk
5. Struggle against cancer inspires PACS data-mining methods. Douglas Page. PACS web (April 2004), http://www.diagnosticimaing.com/pacsweb