Introduction. Briefly, two frames are used to navigate. Frame #2, this one, displays results. Frame #1, on the left, has the search routines. Instructions for each routine can be displayed by selecting the icon "i"; and, therein, if needed, more details instructions are provided with links to specific sections of the book.

For a fast start, go to the left frame and click on the link "0 - For disease search, click here."

For additional, general instructions, select the link above.