Corrected five factual errors in the routine blood-work article

Corrected five points: the cohort came from China Health Aging Investigation hospital systems rather than Mount Sinai; the study did include external validation cohorts; current diagnostic AUCs are now separated from lower forecasting figures; RDW is identified as a complete-blood-count measure; and a methylation clock is described as a model output rather than a direct read of cellular aging.

A source cross-check found that the published page misattributed the cohort and overstated or blurred several scientific claims. Four of the five corrections reduce the strength of the previous wording.

Readers now get a more accurate account of the study design, performance, blood measures, and the limits of model-derived biological-age estimates.