00518nam a2200157Ia 4500008004100000022001400041040001100055100003400066245001200100260009100112300001600203300001100219942000900230999001700239952010400256251112s9999||||xx |||||||||||||| ||und||  a0036-8075  aCNCLSA  aDaniel E. Koshland, Jr.92490 0aScience  cFebruary 21, 1992bThe American Association for the Advancement of ScienceaWashington  aP. 893-1808  bV. 255  cJRBV  c11670d11670  001040915023aCNCLSAbCNCLSAd2025-11-12l0r2025-11-12 00:00:00tNo. 5047-5052yJRBVw2025-11-12