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