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