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 ((biostatistical OR biostatistics) OR (biostatistical OR biostatistics)) AND epidemiology.\\\\\") OR (\\\\\"practical guide to statistical AND epidemiology.\\\\\"))~\\\\"\\\"\\"\"".
• Removing quotes may allow a broader search: \ \\ ((\\\ ((practice guidebook) OR (practical guidebook)) to ((biostatistical OR biostatistics) OR (biostatistical OR biostatistics)) AND epidemiology.\\\ ) OR (\\\ practical guide to statistical AND epidemiology.\\\ ))~\\ \.