Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) PENDRYS DG,Risk factors for enamel fluorosis in optimally fluoridated children born after the US manufacturers' decision to reduce the fluoride concentration of infant formula,Am J Epidemiol,,,1998,148,,967-974,https://cir.nii.ac.jp/crid/1573387449660380928,