Citation

Lee EC. J. Am. Med. Assoc. JAMA 2003; 290(5): 659-662.

Affiliation

Harvard Medical School, Boston, Mass 02215, USA. elee@hsph.harvard.edu

Copyright

(Copyright © 2003, American Medical Association)

DOI

10.1001/jama.290.5.659

PMID

14722139

Abstract

unavailable.