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 guidebook to (biostatistical OR biostatistical) AND epidemiology.\\\ ) OR (\\\ practical guidebook to ((biostatistical OR biostatistical) OR (biostatistical OR biostatistical)) AND epidemiology.\\\ ))) OR (\\\ ((practice guide) OR (practical guide)) to (statistics OR statistical) AND epidemiology.\\\ ))*\\ \~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ \\ ((((\\\ practical guidebook to (biostatistical OR biostatistical) and epidemiology.\\\ ) OR (\\\ practical guidebook to ((biostatistical OR biostatistical) OR (biostatistical OR biostatistical)) and epidemiology.\\\ ))) OR (\\\ ((practice guide) OR (practical guide)) to (statistics OR statistical) and epidemiology.\\\ ))*\\ \~".
• Adding a wildcard symbol may retrieve word variants: \ \\ ((((\\\ practical guidebook to (biostatistical OR biostatistical) and epidemiology.\\\ ) OR (\\\ practical guidebook to ((biostatistical OR biostatistical) OR (biostatistical OR biostatistical)) and epidemiology.\\\ ))) OR (\\\ ((practice guide) OR (practical guide)) to (statistics OR statistical) and epidemiology.\\\ ))*\\ \*.