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 guidebook to (((biostatistical OR (biostatistical OR biostatistical)) OR (biostatistical OR (biostatistical OR biostatistical))) OR (((biostatistical OR (biostatistical OR biostatistical)) OR (biostatistical OR (biostatistical OR biostatistical))) OR ((biostatistical OR (biostatistical OR biostatistical)) OR (biostatistical OR (biostatistical OR biostatistical))))) AND epidemiology.\\\") OR (\\\"((practice guide) OR (practical guide)) to statistics AND epidemiology.\\\"))\\"\"".
• Removing quotes may allow a broader search: ((\ practical guidebook to (((biostatistical OR (biostatistical OR biostatistical)) OR (biostatistical OR (biostatistical OR biostatistical))) OR (((biostatistical OR (biostatistical OR biostatistical)) OR (biostatistical OR (biostatistical OR biostatistical))) OR ((biostatistical OR (biostatistical OR biostatistical)) OR (biostatistical OR (biostatistical OR biostatistical))))) AND epidemiology.\ ) OR (\ ((practice guide) OR (practical guide)) to statistics AND epidemiology.\ )).