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