Since its outbreak in December 2019. a series of clinical trials on coronavirus disease 2019 (COVID-19) have been registered or carried out. However. the significant heterogeneity and less critical outcomes of such trials may be leading to a waste of research resources. https://www.roneverhart.com/Corvette-Floor-Mats-Z06-w-Crossed-Flags-C6-Z06-2007-5-2013/