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

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