Survival of the fittest.
Haigh
Amy
A
D005260:Female; D006801:Humans; D008297:Male; D017056:Medical Laboratory Personnel / Q000145:classification / Q000191:economics / Q000193:education; D011361:Professional Competence; D012456:Salaries and Fringe Benefits / Q000706:statistics & numerical data*; D014481:United States