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