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 (((biostatistics OR statistics) OR (biostatistics OR statistics)) OR (biostatistics OR statistics)) AND epidemiology.\\ ) OR (\\ ((practice guidebook) OR (practical guidebook)) to (((biostatistics OR statistics) OR (biostatistics OR statistics)) OR (biostatistics OR statistics)) AND epidemiology.\\ ))) OR (\\ practical guide to statistical AND epidemiology.\\ ))*\~".
• Adding a wildcard symbol may retrieve word variants: \ ((((\\ ((practice guidebook) OR (practical guidebook)) to (((biostatistics OR statistics) OR (biostatistics OR statistics)) OR (biostatistics OR statistics)) AND epidemiology.\\ ) OR (\\ ((practice guidebook) OR (practical guidebook)) to (((biostatistics OR statistics) OR (biostatistics OR statistics)) OR (biostatistics OR statistics)) AND epidemiology.\\ ))) OR (\\ practical guide to statistical AND epidemiology.\\ ))*\*.