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: \ ((((\\ practice guidebook to (biostatistics OR biostatistics) AND epidemiology.\\ ) OR (((\\ practical guidebook to (biostatistics OR biostatistics) AND epidemiology.\\ ) OR (\\ practical guidebook to ((biostatistics OR biostatistics) OR (biostatistics OR biostatistics)) AND epidemiology.\\ ))))) OR (\\ practical guide to statistical AND epidemiology.\\ ))~\*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ ((((\\ practice guidebook to (biostatistics OR biostatistics) and epidemiology.\\ ) OR (((\\ practical guidebook to (biostatistics OR biostatistics) and epidemiology.\\ ) OR (\\ practical guidebook to ((biostatistics OR biostatistics) OR (biostatistics OR biostatistics)) and epidemiology.\\ ))))) OR (\\ practical guide to statistical and epidemiology.\\ ))~\*".