What are some good sources of studies and tests of various medicinal herbs? Nothing performed or sponsored by the likes of Monsanto, Bayer, Merck, GSK, FDA, CDC, NIH, WHO, WTF, etc. I've tried searching for studies on something as well-known as yarrow with no luck. I know Google censors results that promote herbal medicine, but with approximately 7 billion humans, not everyone can be a brainwashed zombie or greedy prick. Some independent lab or organization must've scientifically tested some medicinal herbs and published the results somewhere online.