Cost and benefit of fluoride in the prevention of dental caries /
Davies, George Neville.
Cost and benefit of fluoride in the prevention of dental caries / by G. N. Davies. - Geneva : World Health Organization, 1974. - 91 p. - WHO offset publication ; no. 9 .
ara eng fre.
9241700092
Fluoridation--economics.
Dental caries--prevention and control.
Cost-benefit analysis.
WU 270
Cost and benefit of fluoride in the prevention of dental caries / by G. N. Davies. - Geneva : World Health Organization, 1974. - 91 p. - WHO offset publication ; no. 9 .
ara eng fre.
9241700092
Fluoridation--economics.
Dental caries--prevention and control.
Cost-benefit analysis.
WU 270