I1N1E1F4F4I1C3A1C3Y4
23 points
INEFFICACY is validvalid
lack of efficacy [n INEFFICACIES]
lack of power to produce a desired effect, also INEFFICACITY [n INEFFICACIES]
lack of efficacy [n INEFFICACIES]
lack of power to produce a desired effect, also INEFFICACITY [n INEFFICACIES]