Anno, Sumiko, Keiji Imaoka, Takeo Tadono, Tamotsu Igarashi, Subramaniam Sivaganesh, Selvam Kannathasan, Vaithehi Kumaran, and Sinnathamby Noble Surendran. 2015. “Space-Time Clustering Characteristics of Dengue Based on Ecological, Socio-Economic and Demographic Factors in Northern Sri Lanka”. Geospatial Health 10 (2). https://doi.org/10.4081/gh.2015.376.