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

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