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