What does CAM mean in the US? I saw this sign at the Toronto Airport in Canada, which god knows.

CAM English full name is Complementary and Alternative Medicine, sometimes also known as "alternative medicine" (Alternative Medicine), "alternative medicine" or "complementary medicine", "alternative medicine" and so on. Alternative Medicine" (Alternative Medicine), "Alternative Medicine" or "Complementary Medicine", "Alternative Medicine" and so on, is the United States of America outside the orthodox medicine of other health technology. The World Health Organization (WHO) classifies 65-80% of the world's health management business as traditional medicine, and the rest falls into these categories, which are similar to the traditional Chinese health food therapy preservation ... Healthy Press... Mo. This is used in the field of biopharmaceuticals, subverting the traditional concept of chemical pharmaceuticals, belonging to the green pharmaceutical engineering, the development momentum is very fierce, is expected to replace the Internet industry, the fourth industrial revolution as a breakthrough.