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: "((((\ practice guidebook to (biostatistics OR biostatistics) AND epidemiology.\ ) OR (((\ practical guidebook to (biostatistics OR biostatistics) AND epidemiology.\ ) OR (\ practical guidebook to (biostatistics OR biostatistics) AND epidemiology.\ ))))) OR (\ practical guide to statistics AND epidemiology.\ ))~".
• Adding a wildcard symbol may retrieve word variants: ((((\ practice guidebook to (biostatistics OR biostatistics) AND epidemiology.\ ) OR (((\ practical guidebook to (biostatistics OR biostatistics) AND epidemiology.\ ) OR (\ practical guidebook to (biostatistics OR biostatistics) AND epidemiology.\ ))))) OR (\ practical guide to statistics AND epidemiology.\ ))*.