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 guidebook to (biostatistics OR biostatistical) AND epidemiology.\ ) OR (\ practical guidebook to (biostatistics OR biostatistical) AND epidemiology.\ ))) OR (((\ practical guide to (statistics OR statistical) AND epidemiology.\ ) OR (\ practice guide to (statistics OR statistical) AND epidemiology.\ ))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\ practical guidebook to (biostatistics OR biostatistical) and epidemiology.\ ) OR (\ practical guidebook to (biostatistics OR biostatistical) and epidemiology.\ ))) OR (((\ practical guide to (statistics OR statistical) and epidemiology.\ ) OR (\ practice guide to (statistics OR statistical) and epidemiology.\ ))))~".
• Adding a wildcard symbol may retrieve word variants: ((((\ practical guidebook to (biostatistics OR biostatistical) and epidemiology.\ ) OR (\ practical guidebook to (biostatistics OR biostatistical) and epidemiology.\ ))) OR (((\ practical guide to (statistics OR statistical) and epidemiology.\ ) OR (\ practice guide to (statistics OR statistical) and epidemiology.\ ))))*.