As a typical case of the optimal planning for the provision of restricted medical resources. widespread vaccination is considered an effective and sustainable way to prevent and control large-scale novel coronavirus disease 2019 (COVID-19) outbreaks. However. an initial supply shortage of vaccines is inevitable because of the narrow production and logistical capacity. https://www.roneverhart.com/5-5-Parlor-Palm-Artificial-Tree-in-White-Tower-Planter/