Authors: Valerie T J Koh; Calvin J Chiew; Sean Wei Xiang Ong; Khine Nandar; Anne Lee; Kelly Foo; Lin Cui; Yi Kai Ng; Rachael Pung; Tau Hong Lee; Zubaidah Said; Raymond Lin; David Chien Lye; Yee-Sin Leo; Vernon Lee Journal: Am J Public Health Date: 2020-08-20 Impact factor: 11.561