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 biostatistical) AND epidemiology.\\\ ) OR (\\\ practical guidebook to (biostatistics OR biostatistical) AND epidemiology.\\\ ))) OR (((\\\ practical guide to statistical AND epidemiology.\\\ ) OR (\\\ practice guide to statistical AND epidemiology.\\\ ))))~\\ \*".