Check the language used in the article. "We propose a link" and "Evidence presented here supports a premise" and "may have exacerbated". These are hardly words that support a definitive conclusion. If there is a link, why isn't eveyone sick from covid, since just about everyone uses a cell phone on the 5G system. How do we explain people who get covid that Don't have a 5G phone, like me? Remember, figures don't lie, but liars do figure.