If Dr. Charlie McKay had a holiday wish list for the cancer-care practice that he runs, the top request would probably be a Hispanic oncologist, or at least one fluent in Spanish.

With his offices in the diverse community off Nolensville Road, it's not unusual for McKay to encounter patients who don't speak English. And that can pose challenges to delivery of care. Doctors are obligated, for example, to provide written information, in a patient's language, on certain drugs or treatments that are still in clinical trials. Also, the medical team offering the care must have a member who is fluent in the patient's language.

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