pubmed:affiliation |
Laboratory of Epidemiology, Demography, and Biometry, National Institute on Aging, National Institutes of Health, Bethesda, Maryland 20892, USA. vestergaards@mail.nih.gov
|
pubmed:publicationType |
Journal Article,
Research Support, N.I.H., Extramural,
Research Support, N.I.H., Intramural
|