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'determined': [85, 186], 'means': [87], 'clonogenic': [90], 'assay.': [91, 191], 'When': [92], 'exposure': [93], 'times': [94], 'corresponding': [96], 'IC': [97], 's': [99], 'plotted': [101], 'on': [102], 'log‐log': [104], 'scale,': [105], 'all': [106, 136], 'gave': [112], 'curves': [113, 134], 'including': [114], 'linear': [116], 'portion': [117], 'with': [118, 159], 'slope': [120, 146], '−1,': [122, 148], 'which': [123, 149], 'is': [124, 150], 'characteristic': [125], 'phase‐nonspecific': [129], 'In': [131, 157], 'contrast,': [132], 'had': [142], 'much': [144], 'steeper': [145], 'than': [147], 'typical': [151], 'agreement': [158], 'this': [160], 'finding,': [161], 'remarkably': [165], 'accumulated': [166], 'in': [167, 178, 203], 'G': [169], '2‐': [170], 'M': [171], 'phase': [172], 'when': [173, 181], 'VP‐16,': [176], 'but': [177], 'late': [179], 'S‐phase': [180], 'CPT': [184], 'flow': [189], 'cytometric': [190], 'These': [192], 'results': [193], 'indicated': [194], 'two': [197], 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