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