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

• If you are trying to use Boolean operators, they must be ALL CAPS: \ (((\\ practical OR \\ practice) guidebook to (((biostatistics OR biostatistical) OR (biostatistics OR biostatistical)) OR (biostatistics OR biostatistical)) AND epidemiology.\\ ) OR ((\\ practical OR \\ practice) guide to (statistics OR statistical) AND epidemiology.\\ ))~\*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ (((\\ practical OR \\ practice) guidebook to (((biostatistics OR biostatistical) OR (biostatistics OR biostatistical)) OR (biostatistics OR biostatistical)) and epidemiology.\\ ) OR ((\\ practical OR \\ practice) guide to (statistics OR statistical) and epidemiology.\\ ))~\*".