https://palliative.stanford.edu/home-hospice-home-care-of-the-dying-patient/common-terminal-diagnoses/stroke-and-coma/
https://books.google.co.in/books?id=C5FaSueqYUoC
https://books.google.co.in/books?id=jzvHdAgLsxUC
https://books.google.co.in/books?id=rTexGiX5bqoC