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 OR practice) guidebook to (((biostatistical OR statistical) OR (biostatistical OR statistical)) OR (biostatistical OR statistical)) AND epidemiology. ) OR (( practical OR practice) guide to statistics AND epidemiology. ))~".
• Adding a wildcard symbol may retrieve word variants: ((( practical OR practice) guidebook to (((biostatistical OR statistical) OR (biostatistical OR statistical)) OR (biostatistical OR statistical)) AND epidemiology. ) OR (( practical OR practice) guide to statistics AND epidemiology. ))*.