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

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

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