You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: \ (((((((\\ practical OR \\ practice) guidebook to biostatistics AND epidemiology.\\ ) OR ((\\ practical OR \\ practice) guidebook to biostatistical AND epidemiology.\\ ))) OR ((\\ practical OR \\ practice) guidebook to biostatistical AND epidemiology.\\ ))) OR ((((\\ practical OR \\ practice) guide to statistics AND epidemiology.\\ ) OR ((\\ practical OR \\ practice) guide to statistical AND epidemiology.\\ ))))~\.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ (((((((\\ practical OR \\ practice) guidebook to biostatistics and epidemiology.\\ ) OR ((\\ practical OR \\ practice) guidebook to biostatistical and epidemiology.\\ ))) OR ((\\ practical OR \\ practice) guidebook to biostatistical and epidemiology.\\ ))) OR ((((\\ practical OR \\ practice) guide to statistics and epidemiology.\\ ) OR ((\\ practical OR \\ practice) guide to statistical and epidemiology.\\ ))))~\".
• Adding a wildcard symbol may retrieve word variants: \ (((((((\\ practical OR \\ practice) guidebook to biostatistics and epidemiology.\\ ) OR ((\\ practical OR \\ practice) guidebook to biostatistical and epidemiology.\\ ))) OR ((\\ practical OR \\ practice) guidebook to biostatistical and epidemiology.\\ ))) OR ((((\\ practical OR \\ practice) guide to statistics and epidemiology.\\ ) OR ((\\ practical OR \\ practice) guide to statistical and epidemiology.\\ ))))~\*.