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: "\ \\ (((\\\ practical OR \\\ practice) guidebook to (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)) AND epidemiology.\\\ ) OR ((\\\ practical OR \\\ practice) guide to statistics AND epidemiology.\\\ ))*\\*.