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

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