Naah, they merely looked at Apple Watch graphs and skipped more noninvasive diagnostics directly to invasive diagnostic procedure - aka catheterization aka angi

Naah, they merely looked at Apple Watch graphs and skipped more noninvasive diagnostics directly to invasive diagnostic procedure - aka catheterization aka angiography. Angiography is the real test that can find the blockage but is invasive, so not done unless there is solid suspicion. Summary of the paper: Apple Watch was right. They found the blockage and fixed it.