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