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 biostatistics AND epidemiology.\\\"))) OR (\\"practice guide to statistical 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 biostatistics AND epidemiology.\ ))) OR ( practice guide to statistical AND epidemiology.\ ))~.