RT Journal Article
SR Electronic
T1 AAAS VISA ® Gold Member Benefit
JF Science
JO Science
FD American Association for the Advancement of Science
SP 299
OP 299
DO 10.1126/science.299-a
VO 250
IS 4978
YR 1990
UL http://science.sciencemag.org/content/250/4978/299.2.abstract
AB