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'https://openalex.org/W1821121474', 'https://openalex.org/W1572830361'], 'abstract_inverted_index': {'Efficient': [0], 'phagocytosis': [1, 65], 'of': [2, 24, 37, 40, 46, 64, 70, 82, 93, 100, 107, 118, 128, 144, 164, 185], 'staphylococci': [3], 'by': [4, 12, 51, 66], 'human': [5, 67], 'neutrophilis': [6], 'is': [7, 173], 'dependent': [8], 'on': [9, 80, 141], 'bacterial': [10], 'opsonization': [11, 88], 'serum': [13, 145, 157], 'factors.': [14], 'These': [15], 'factors': [16], 'include': [17], 'specific': [18], 'antibodies': [19], 'as': [20, 22], 'well': [21], 'components': [23], 'the': [25, 34, 83, 91, 98, 116, 135, 142], 'classical': [26, 84], 'and': [27, 43, 61, 75, 125, 139], 'alternative': [28, 136], 'complement': [29, 85, 137, 159], 'systems.': [30], 'In': [31], 'this': [32, 186], 'study': [33], 'opsonic': [35, 59, 165], 'requirements': [36, 166], 'three': [38, 44], 'strains': [39, 45, 127], 'S.': [41, 47, 71, 108, 121, 129, 149], 'aureus': [42, 72, 109, 122], 'epidermidis': [48, 130, 150], 'were': [49, 131], 'investigated': [50], 'incubating': [52], '[3H]thymidine-labelled': [53], 'bacteria': [54], 'in': [55, 90, 97, 115, 155], 'sera': [56], 'with': [57], 'different': [58], 'activities': [60], 'measuring': [62], 'rates': [63], 'neutrophils.': [68], 'Opsonization': [69], 'Cowan': [73, 110], 'I': [74, 111], '502': [76], 'A': [77, 102, 104, 147, 179], 'depended': [78, 140], 'primarily': [79, 133], 'activation': [81], 'pathway.': [86], 'Effective': [87], 'occurred': [89], 'absence': [92, 99, 117], 'immunoglobulin': [94], 'but': [95], 'not': [96], 'complement.': [101], 'protein': [103, 178], 'deficient': [105], 'mutant': [106], 'was': [112, 152, 167], 'poorly': [113], 'opsonized': [114, 132, 154], 'IgG,': [119], 'however.': [120], 'Wood': [123], '46': [124], 'two': [126], 'through': [134], 'pathway': [138], 'presence': [143], 'IgG.': [146], 'third': [148], 'strain': [151], 'efficiently': [153], 'heat-inactivated': [156], 'without': [158], 'activity.': [160], 'Thus,': [161], 'a': [162], 'heterogeneity': [163], 'found': [168], 'among': [169], 'staphylococcal': [170], 'strains.': [171], 'It': [172], 'proposed': [174], 'that': [175], 'cell': [176], 'wall': [177], 'may': [180], 'be': [181], 'an': [182], 'important': [183], 'determinant': [184], 'heterogeneity.': [187]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W32115958', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 1}, {'year': 2013, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 1}], 'updated_date': '2024-12-27T12:09:11.805314', 'created_date': '2016-06-24'}