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