Please note there are many different users of this IP address Regarding the changes to the entry on differential diagnosis which I did write I consider them to be useful changes NOT spam Naturally if you disagree with the additions to the Differential Diagnosis page then since it is your page you should feel free to change or delete them Alternatively if you have different views on some aspect of the topic but still are willing to acknowledge the potential relevance of some of the information that I ve added perhaps you wish to moved my additions to some other section of your page or supplement it with additional information of your own or indicate that there is disagreement on some aspect of it I acknowledge that many of the points that I brought up on the topic of differential diagnosis are quite straightforward but I think that they are still relevant and useful Some of the other points regarding the use of Bayes rule to rigorously use conditioning information such as risk factors to evaluate the likelihood of various diagnoses is unfortunately not known by many practioners although it is actually the theoretically most correct way of evaluating and using such risk data The other point regarding cognitive biases in medical decision making is a very important one and has been the subject of over 25 years of research at many top Universities like Stanford and U C Berkeley I urge you to take a look at some of the biases on the list of cognitive biases particularly availability bias representativeness bias ignoring bases rates optimistic overconfidence bias and a whole host of other very well researched biases that have a ongoing profound impact on clinical decision making Perhaps it would be best if these would be moved to a different subsection of the page and you should certainly feel free to do so or if you give me permission I would be happy to do so Thanks