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

• Performing a fuzzy search may retrieve terms with similar spellings: \ ((\ practical guidebook to (biostatistical OR biostatistics) AND epidemiology.\\ ) OR (\ practical guide to (statistics OR statistical) AND epidemiology.\\ ))*\~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "\ ((\ practical guidebook to (biostatistical OR biostatistics) AND epidemiology.\\ ) OR (\ practical guide to (statistics OR statistical) AND epidemiology.\\ ))*\*".