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