To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.
I have noticed some typos and mistakes in the book. Especially the abbreviations used, there are typos such as alpha chain ,Beta chain amyloid is typed instead of gamma chain amyloid. The abbreviations are wrong in some places which totally change the meaning of the sentence. Please read with caution.