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 biostatistics) AND epidemiology.\ ) OR ((\ practical OR \ practice) guidebook to ((biostatistical OR biostatistics) OR (biostatistical OR biostatistics)) 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 biostatistics) and epidemiology.\ ) OR ((\ practical OR \ practice) guidebook to ((biostatistical OR biostatistics) OR (biostatistical OR biostatistics)) 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 biostatistics) and epidemiology.\ ) OR ((\ practical OR \ practice) guidebook to ((biostatistical OR biostatistics) OR (biostatistical OR biostatistics)) and epidemiology.\ ))) OR ((\ practical OR \ practice) guide to statistics and epidemiology.\ ))*.