1. 1. Choi BC. The past, present, and future of public health surveillance. Scientifica 2012;2012:875253. DOI: 10.6064/2012/875253.
2. 2. Langmuir AD. The surveillance of communicable diseases of national importance. N Engl J Med 1963;268(4):182–192. DOI: 10.1056/NEJM196301242680405.
3. 3. Eylenbosch WJ, Noah ND, Paterson JG, Stroobant A, Casteren VV, Thiers G, et al. Surveillance in health and disease. Oxford University Press; 1988.
4. 4. Declich S, Carter AO. Public health surveillance: historical origins, methods and evaluation. Bull World Health Organ 1994;72(2):285–304. PMID: 8205649; PMCID: PMC2486528.
5. 5. Thacker SB, Stroup DF. Public health surveillance and health services research. In: Epidemiology and health services. Oxford University Press; 1998. p. 61–82.