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'specimens': [35], 'drug': [37, 146, 214], 'addicts': [38, 191], 'known': [40, 149], 'abuse': [42, 151], 'a': [44, 74, 90, 168], 'group': [45], 'non-addictive': [47], 'control': [48], 'subjects': [49], 'analysed,': [51], 'using': [52], 'antibodies': [53], 'indicating': [54], 'stages': [56, 155], 'The': [59, 103, 162], 'subgranular': [60, 134], 'zone': [61, 135], 'the': [63, 110, 117, 124, 132, 137, 143, 159, 174], 'dentate': [64, 138, 160], 'gyrus': [65], 'was': [66, 113], 'examined': [67], 'qualitatively': [68], 'quantitatively.The': [70], 'data': [71, 140], 'indicate': [72], '(i)': [73], 'decreased': [75], 'number': [76], 'neural': [78, 177], 'precursor': [79, 125, 178], 'cells,': [80], '(ii)': [81], 'accompanied': [82], 'by': [83], 'low': [84], 'rates': [85], 'proliferation': [87], '(iii)': [89], 'marked': [91], 'loss': [92], 'dendritic': [94], 'trees': [95], 'targeting': [97, 185], 'cells': [98, 108, 130, 179, 186], 'fatalities.': [101], '(iv)': [102], 'age-dependent': [104], 'increase': [105], 'differentiating': [107], 'healthy': [111, 195], 'controls': [112], 'not': [114], 'observed': [115], 'addicts.': [118], 'Additionally,': [119], 'double': [120], 'immunofluorescence': [121], 'labelling': [122], 'indicated': [123], 'nature': [126], 'Musashi-1': [128], 'positive': [129], 'human': [133], 'gyrus.Present': [139], 'firstly': [141], 'demonstrate': [142], 'influence': [144], 'developmental': [154], 'progenitors': [157], 'gyrus.': [161], 'patterns': [163], 'antibody': [165], 'staining': [166], 'suggest': [167], 'distinct': [169], 'inhibition': [170], 'at': [173], 'stage': [175], 'revealed': [181], 'morphological': [182], 'changes': [183], 'cases': [188], 'as': [192, 207, 209], 'compared': [193], 'controls.': [196], 'These': [197], 'alterations': [198], 'could': [199], 'considerable': [201], 'for': [202], 'memory': [203], 'cognitive': [205], 'deficits': [206], 'well': [208], 'addictive': [210], 'behaviour': [211], 'chronic': [213], 'abusers': [215], 'may': 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