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