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Zheng X, Zhao J, Zhang J, Yao D, Jiang G, Yang W, Ma X, Wang H, Lu X, Zhu X, Chen M, Zhang M, Zhang X, Wang G, Han F. Anaesthesia provision, infrastructure and resources in the Heilongjiang Province, China: a cross-sectional observational study. BMJ Open. 2022 Jun 20;12(6):e051934. PMID: 35725259; PMCID: PMC9214381. |