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