You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you will be given a sentence. You need to reconize the name of the disorder or disease. Disease is a disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury. Although there might be several correct answers, you need to write one of them.

I had been suffering from cardiovascular disorder.
Solution: cardiovascular disorder
Why? Here, the person mentions this disorder which is related to heart issues.

New input:  In order to define the types of disease - causing ATM mutations in Japanese A - T patients as well as to look for possible mutational hotspots , reverse - transcribed RNA derived from ten patients belonging to eight unrelated Japanese A - T families was analyzed for mutations by the restriction endonuclease fingerprinting method .
Solution:
A - T