Impact of the COVID-19 pandemic on the number and proportion of outpatients in the pediatric internal medicine clinic of a tertiary hospital
Xie Wanhua, Yu Ying
International Medicine and Health Guidance News . 2022, (18): 2517 -2521 .  DOI: 10.3760/cma.j.issn.1007-1245.2022.18.001

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