Abstract Objective To explore the effect of Ludangshen oral liquid for treatment of convalescent patients with coronavirus disease 2019 (COVID-19) with randomized. double-blind. placebo-controlled multicenter method. Methods 200 convalescent COVID-19 patients who had symptoms related to decreased digestive and respiratory function were randomly divided to either receive Ludangshen ora... https://sportsplazanyes.shop/product-category/baby-shirts/