Figure 1.
aPublic Health Functions Steering Committee. Public health in America: the 10 essential public health services. Washington: Public Health Service (US); July 1995.
bWitt-Kushner J, Astles JR, Ridderhof JC, Martin RA, Wilcke B Jr, Downes FP, et al. Core functions and capabilities of state public health laboratories: a report of the Association of Public Health Laboratories. MMWR Recomm Rep 2002;51(RR-14):1-8.