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'several': [109], 'minor': [110], 'differences.': [111], 'High': [112], 'these': [115], 'surface': [116], 'markers': [117], 'correlated': [123], 'poor': [125], 'differentiation': [126, 138], 'into': [127], 'hyaline': [128], 'cartilage.': [129], 'Synovial': [130], 'presented': [133], 'relatively': [135], 'small': [136], 'capacity': [139], 'strong': [146], 'conclusion,': [150], 'elderly': [153], 'may': [157], 'still': [158], 'display': [159], 'significant': [160], 'potential,': [162], 'depending': [163], 'on': [164], 'origin.': [166]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2003801508', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 4}, {'year': 2020, 'cited_by_count': 7}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 3}, {'year': 2017, 'cited_by_count': 1}, {'year': 2016, 'cited_by_count': 5}, {'year': 2014, 'cited_by_count': 3}, {'year': 2013, 'cited_by_count': 7}], 'updated_date': '2024-09-19T00:26:57.921722', 'created_date': '2016-06-24'}