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