Institutional Chickenpox Prevention Programme (ICPP) in a tertiary care hospital in Singapore: Lessons from epidemiology and contact tracing. (April 2016) - Mittal, C.; Sridhar, R.; Chan, H.C.; hou, Y.; Sng, J.G.K.; Lin, R.; Tambyah, P.A.; Fisher, D.; Venkatachalam, I.