Front Immunol (2018) 9:112
If nothing else, the theoretical and experimental work on the Mpemba effect has started giving physicists a handhold into nonequilibrium systems that they otherwise lack
PRP coverage varies by insurer and indication: some plans cover PRP for specific orthopedic conditions, but many consider it experimental
Do not store it in the door of the fridge, as the temperature fluctuates too much when opened
But if it were to occur, you could experience throat swelling, an itchy body rash, dangerously low blood pressure, or symptoms associated with anaphylaxis (throat swelling, trouble breathing)
For a 5mg vial, the math is straightforward once you choose your water volume