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

• Performing a fuzzy search may retrieve terms with similar spellings: \ ((( practical OR practice) guidebook to ((biostatistics OR biostatistical) OR biostatistical) AND epidemiology.\\ ) OR (( practical OR practice) guide to statistics AND epidemiology.\\ ))*\~.
• If you are trying to use Boolean operators, they must be ALL CAPS: \ ((( practical OR practice) guidebook to ((biostatistics OR biostatistical) OR biostatistical) AND epidemiology.\\ ) OR (( practical OR practice) guide to statistics AND epidemiology.\\ ))*\*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ ((( practical OR practice) guidebook to ((biostatistics OR biostatistical) OR biostatistical) AND epidemiology.\\ ) OR (( practical OR practice) guide to statistics AND epidemiology.\\ ))*\*".