- Full four volumes of text (4608 pages) and over 9000 illustrations all on one CD
- Search functionality
- collapsible Table of Contents
- Navigation buttons
- Linked Index
- All reference chapters linked to main reference list, with further links to PubMed
- Weblinks included for text updates and Medline abstracts of references
- End-of-Chapter listing of all tables and figures for each chapter
- Both Windows and Macintosh versions are on the same disk
With 34 additional contributors