You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: \ \\ ((( practical OR practice) guidebook to (biostatistical OR biostatistics) AND epidemiology.\\\ ) OR (( practical OR practice) guide to statistical AND epidemiology.\\\ ))~\\.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ \\ ((( practical OR practice) guidebook to (biostatistical OR biostatistics) and epidemiology.\\\ ) OR (( practical OR practice) guide to statistical and epidemiology.\\\ ))~\\".
• Adding a wildcard symbol may retrieve word variants: \ \\ ((( practical OR practice) guidebook to (biostatistical OR biostatistics) and epidemiology.\\\ ) OR (( practical OR practice) guide to statistical and epidemiology.\\\ ))~\\*.