Perhaps you should try some spelling variations:
"practice guidebook to biostatistics and epidemiology." » "practice guidebook to biostatistical and epidemiology." (Expand Search)
"practical guidebook to biostatistics and epidemiology." » "practical guidebook to biostatistical and epidemiology." (Expand Search)
"practical guide to statistics and epidemiology." » "practical guide to statistical and epidemiology." (Expand Search)

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