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 OR biostatistics) OR biostatistics) OR biostatistics) AND epidemiology.\\\ ) OR (((\\\ practical guide to statistics AND epidemiology.\\\ ) OR (\\\ practice guide to statistics AND epidemiology.\\\ ))))~\\ \*".