Response and Lessons Learnt Managing the COVID-19 Crisis by School of Medicine, National University of SingaporeDujeepa D. Samarasekera[1][a], Denise Li Meng Goh[1], Su Ping Yeo[1], Nicola Siew Pei Ngiam[1], Marion M. Aw[1], Mei Mei Lim[1]…