Unfortunately, it is extremely difficult to find truly unbiased research.  This has been a problem for multiple decades.  Research is expensive.  Whoever is footing the bill will inherently want results that help pay for said bill.  This is particularly true in medicine.

A well respected UC San Diego scientist, Dr. Beatrice Golomb, is no quack or conspiracy theorist.  Also well credentialed is the Science Network which hosts a shocking youtube which reveals the deeply entrenched fraud within the medical/pharmaceutical research communities.

If the link doesn’t work, type in Google: Beatric Golomb Candles in the Dark.

Well worth 20 minutes for viewing.