Author Contributions: Dr Schaumberg had full
access to all of the data in the study and takes responsibility for the integrity
of the data and the accuracy of the data analysis.
Study concept and design: Schaumberg, Hu.
Acquisition of data: Schaumberg, Mendes, Balaram,
Dana, Sparrow, Hu.
Analysis and interpretation of data: Schaumberg,
Drafting of the manuscript: Schaumberg, Dana,
Critical revision of the manuscript for important
intellectual content: Schaumberg, Mendes, Balaram, Sparrow, Hu.
Statistical analysis: Schaumberg, Sparrow.
Obtained funding: Schaumberg, Hu.
Administrative, technical, or material support:
Schaumberg, Dana, Hu.
Study supervision: Schaumberg, Dana, Hu.
Funding/Support: This work was supported by
Fight for Sight (GA20020) and NIEHS (ES 05257-06A1, P42-ES05947, 2 P30 ES00002).
The Normative Aging Study is supported by the cooperative studies program/ERIC,
Department of Veterans Affairs, and is a component of the Massachusetts Veterans
Epidemiology Research and Information Center (MAVERIC). Men were evaluated
for bone lead with support from National Institutes of Health (NIH) grant
NCRR GCRC M01RR02635. The K x-ray fluorescence instrument was developed by
ABIOMED, Inc, with support from NIH grant SBIR 2R44 ES03918-02.
Role of the Sponsor: This study was wholly
designed, conducted, analyzed, and reported by the authors without any input
from industrial sponsors.