TY  - BOOK
AU  - Discovery Channel
TI  - Understanding [videorecording]: viruses 
PY  - 2004///
CY  - Quezon City
PB  - Magna Vision
KW  - Virus diseases
N2  - Understading: Viruses explains how these submicroscopic parasites operate, and how your immune systems works to defend you. And see how scientists are making radical new attempts to use invading viruses as agents of healing
ER  -