Helps to quickly reference and look up the pathogenesis, as a reference handbook on pathology anywhere. The program is useful for everyone, especially necessary for medical students to refer to anytime, anywhere. Function: --* Refer to the pathogenesis, treatment .... of many diseases. --* Works without internet connection. --* Simple interface, easy to use. --* Easy to look up and find information. Note: Program data is collected from the internet and is for reference