Title:
Science
Publisher:
American Association for the Advancement of Science (AAAS)
ISSN
(Print):
00368075
ISSN
(Electronic):
10959203
Publication date
(Print):
October
1999
Volume: 286
Issue: 5439
Pages: 487-491
Article
DOI: 10.1126/science.286.5439.487
SO-VID: 6b4f418e-d098-4db1-992a-fb7f13e48f8f