Dilution factor (Reciprocal),0.0625 µg/ml,0.125 µg/ml,0.25 µg/ml,0.5 µg/ml,, 0,0,0,0,0,, 0.0039,9,12,8,3,, 0.0078,20,17,11,5,, 0.0156,45,30,18,10,, 0.0313,63,55,35,19,, 0.0625,99,88,64,36,, 0.125,159,142,119,63,, 0.25,223,223,187,117,, 0.5,270,294,272,190,, 1,263,315,317,279,,