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 OR practice) guidebook to biostatistical AND epidemiology.\\ ) OR (\\ (practical OR practice) guidebook 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 biostatistical AND epidemiology.\\ ) OR (\\ (practical OR practice) guidebook to statistics AND epidemiology.\\ ))) OR (\\ (practical OR practice) guide to statistical AND epidemiology.\\ ))~\*.