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'understand': [252], 'at': [257], 'molecular': [261], 'genetics': [262], 'unveil': [264], 'biosynthetic': [266], 'mechanism': [267], 'camptothecin': [269], 'precursors.': [270]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2170697831', 'counts_by_year': [{'year': 2024, 'cited_by_count': 2}, {'year': 2023, 'cited_by_count': 1}, {'year': 2022, 'cited_by_count': 2}, {'year': 2021, 'cited_by_count': 1}, {'year': 2020, 'cited_by_count': 3}, {'year': 2019, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 1}, {'year': 2017, 'cited_by_count': 1}, {'year': 2016, 'cited_by_count': 1}, {'year': 2015, 'cited_by_count': 3}, {'year': 2014, 'cited_by_count': 1}, {'year': 2012, 'cited_by_count': 3}], 'updated_date': '2024-09-15T16:40:26.701168', 'created_date': '2016-06-24'}