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