The first PDF is Dr. Mercola's advice on nutrition and supplements to make your immune system strong to resist COVID and other respiratory viruses. There is still time to prepare yourself for the upcoming cold and flu season. Please take this seriously and share this document with others.
If you want to talk about doctors, then Dr. Mercola is a name that deserves to be mentioned. Of course, Doctor Zelenko who is the first to promote Zinc, HCQ and Azithromycin as a synergetic combo to fight COVID infections, is another name worth mentioning. These doctors have done something worth talking about. Not F and B who did nothing but talk back and forth on TV.
Second PDF is a Vitamin D study from Indonesia with statistics relating COVID survival to Vitamin D levels in the body. Eye opening.