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