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