Research Paper Volume 12, Issue 17 pp 16709—16743
Discovering correlates of age-related decline in a healthy late-midlife male birth cohort
Figure 7. Flow diagram showing the data collected at each time point for subjects used in this present sub-study. W-11, W-20, W-57, and W-63 = data acquired at ages ~11, ~20, ~57 and ~63 respectively.