Title:
Science
Publisher:
American Association for the Advancement of Science (AAAS)
ISSN
(Print):
00368075
ISSN
(Electronic):
10959203
Publication date
(Print):
May
23 1997
Volume: 276
Issue: 5316
Pages: 1221-1229
Article
DOI: 10.1126/science.276.5316.1221
SO-VID: f9762024-399e-4dbc-a8c7-7b12e6dfc593
Copyright © ©
1997