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

• Removing quotes may allow a broader search: \ \\ ((\ practical guidebook to (biostatistical OR (biostatistics OR statistics)) AND epidemiology.\\\ ) OR (\ practice guide to statistical AND epidemiology.\\\ ))~\\.

Perhaps you should try some spelling variations:
"\ \\ \ practical guidebook to biostatistical OR biostatistics OR statistics AND epidemiology.\\\ OR \ practice guide to statistical AND epidemiology.\\\ \" » "\ \\ \ practical guide to biostatistical OR biostatistics OR statistics AND epidemiology.\\\ OR \ practice guide to statistical AND epidemiology.\\\ \" (Expand Search), "\ \\ \ practical guidebook to biostatistical OR biostatistics OR statistics AND epidemiology.\\\ OR \ practical guide to statistical AND epidemiology.\\\ \" (Expand Search)