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{'id': 'https://openalex.org/W2141689611', 'doi': 'https://doi.org/10.1186/1471-2407-14-18', 'title': 'Progression-free survival at 2 years is a reliable surrogate marker for the 5-year survival rate in patients with locally advanced non-small cell lung cancer treated with chemoradiotherapy', 'display_name': 'Progression-free survival at 2 years is a reliable surrogate marker for the 5-year survival rate in patients with locally advanced non-small cell lung cancer treated with chemoradiotherapy', 'publication_year': 2014, 'publication_date': '2014-01-14', 'ids': {'openalex': 'https://openalex.org/W2141689611', 'doi': 'https://doi.org/10.1186/1471-2407-14-18', 'mag': '2141689611', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/24422706', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/3901557'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1186/1471-2407-14-18', 'pdf_url': 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