The slide rule and the calculator.
Petsko
G A
GA
Rosenstiel Basic Medical Sciences Research Center, Brandeis University, Waltham, MA 02454-9110, USA. petsko@brandeis.edu
D004247:DNA / Q000737:chemistry / Q000235:genetics*; D015894:Genome, Human; D016045:Human Genome Project; D006801:Humans; D017422:Sequence Analysis, DNA / Q000379:methods / Q000639:trends
D004247:DNA