NEW YORK (AP) — Wall Street’s sell-off is kicking back into gear on Thursday, and a U.S. stock market rattled by uncertainty about the economy and President Donald Trump’s tariffs is nearly ...

There is a chronic shortage of donor hearts in both the adult and pediatric population, with significant challenges in both patient populations (Evers et al., 2011; Alyaydin et al., 2020; Jiritano et ...