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