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