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{'Epidermal': [0], 'growth': [1, 113, 529], 'factor': [2], '(EGF),': [3], 'in': [4, 39, 49, 84, 151, 175, 216, 233, 238, 279, 321, 349, 381, 428, 461, 487, 497, 531, 549], 'pharmacological': [5], 'concentrations,': [6], 'inhibits': [7], 'the': [8, 55, 94, 107, 112, 126, 136, 152, 171, 186, 193, 368, 417, 455, 542, 554], 'cellular': [9], 'proliferation': [10], 'of': [11, 27, 47, 54, 64, 73, 81, 90, 97, 109, 128, 135, 154, 164, 189, 199, 203, 242, 290, 303, 319, 329, 346, 371, 379, 392, 404, 430, 445, 454, 493, 502, 544], 'MDA-468': [12, 190, 322, 488, 494, 532], 'human': [13], 'breast': [14, 533], 'cancer': [15, 534], 'cells.': [16, 115, 323, 383, 489], 'In': [17, 281, 297, 410, 509], 'this': [18, 22, 250, 285, 521], 'study,': [19, 522], 'we': [20, 267], 'characterized': [21], 'unusual': [23], 'phenomenon': [24], 'by': [25, 60, 71, 276, 333, 433], 'means': [26], 'cell': [28, 37, 56, 141, 187, 265, 406], 'cycle': [29, 188, 407], 'and': [30, 51, 144, 156, 174, 231, 260, 311, 316, 355, 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