Bright smiles, shining futures.
Yehieli
M
M
Division of Health Promotion and Education, University of Northern Iowa, Cedar Falls 50614, USA.
Koch
S
S
D002648:Child; D004641:Emigration and Immigration; D006266:Health Education / Q000379:methods*; D006801:Humans; D010988:Play and Playthings; D012572:School Health Services; D013663:Teaching / Q000379:methods*; D014099:Toothbrushing