Communication between health care providers and language- or mentally challenged patients (e.g., Aphasics, Alzheimer patients)

I only need a one page Introduction on the topic: Communication between health care providers and language- or mentally challenged patients (e.g., Aphasics, Alzheimer patients). A nice, solid introduction that will be a great start for the rest of the paper! The introduction should briefly tie in topics that will be discussed throughout the paper.