Title:
Science
Publisher:
American Association for the Advancement of Science (AAAS)
ISSN
(Print):
00368075
ISSN
(Electronic):
10959203
Publication date
(Print):
September
1999
Volume: 285
Issue: 5434
Pages: 1706-1709
Article
DOI: 10.1126/science.285.5434.1706
SO-VID: a206eaf8-17d0-40e4-b581-6a96de16e7f6