You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: \ ((\\ practical guidebook to (statistics OR biostatistics) AND epidemiology.\\ ) OR (\\ practical guide to statistical AND epidemiology.\\ ))~.

Perhaps you should try some spelling variations:
"\ \\ practical guidebook to statistics OR biostatistics AND epidemiology.\\ OR \\ practical guide to statistical AND epidemiology.\\ » "\ \\ practice guidebook to statistics OR biostatistics AND epidemiology.\\ OR \\ practice guide to statistical AND epidemiology.\\ (Expand Search)