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