Article Information
vol. 270 no. 5234 273-275
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© 1995 American Association for the Advancement of Science
Author Information
- G. Briceño and X.-D. Xiang, Molecular Design Institute, Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA.
- H. Chang, X. Sun, P. G. Schultz, Molecular Design Institute, Lawrence Berkeley Laboratory, Howard Hughes Medical Institute, and Department of Chemistry, University of California, Berkeley, CA 94720, USA.
- ↵(1) To whom correspondence should be addressed.
