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