UNIVERSITY OF COLORADO MEDICAL CENTER 4200 EAST NINTH AVENUE DENVER , COLORADO 80220 DENISON MEMORIAL LIBRARY March 14, 1966 [> lH i I= I> [HA Ite Dr. Joshua Lederberg Stanford University School of Medicine Palo Alto, California 94304 ‘4 Dear Joshua: Sorry to be so late in replying, but we have been having all kinds of vexing machine problems. I am enclosing the results of the search on genetic variations in catecholamine metabolism. There are 4 citations in the first alphabet, presumably the closest to the mark, and 9 additional citations in the second alphabet. I hope these will be of some use. This is the result of searching the 1964 and 1965 tapes only; if you want us to push this through the 1966 tapes also, let us know. Swzded I regret that I do not know of a set of diagnostic descriptors in the field of pediatrics. om I am fascinated to hear of your experience with the SDC time-sharing system. While I cannot really understand your article on the DENDRAL system, I appreciate having the opportunity to peruse it. Best.