Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Grossly biased, full of misinformation.

The author attacks the safest form of health care known to man because of his personal experience. He fails to acknowledge that the profession has over a 99% patient satisfaction rating, that a doctor of chiropractic enjoys the lowest malpractice premiums amoung health care providers, and that his incident may not have even been due to his chiropractic experience.