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