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