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