Serena Williams seems prone to pulmonary embolisms, and she undoubtedly has a paid nutritionist. All that’s needed to prevent PEs is Vitamin E, but no one seems to know this. People whine to me about their gall bladders: Vitamin E prevents gall bladder problems. And Vitamin E is very hard to get from one’s food unless one eats a fair amount of FRESHLY SHELLED nuts or FRESHLY GROUND whole grains. Davis carefully describes the two types of kidney stones you can form, and what’s needed to dissolve them. On and on and on, and she is still a valuable reference.