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 AND epidemiology.\\ ) OR (\ practical guidebook to biostatistics AND epidemiology.\\ ))) OR (\ practical 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 and epidemiology.\\ ) OR (\ practical guidebook to biostatistics and epidemiology.\\ ))) OR (\ practical 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 and epidemiology.\\ ) OR (\ practical guidebook to biostatistics and epidemiology.\\ ))) OR (\ practical guidebook to biostatistics and epidemiology.\\ ))) OR (\ practical guide to (statistics OR statistical) and epidemiology.\\ ))~\*.