WHO study of dental caries etiology in Papua New Guinea /
Schamschula, R. G.
WHO study of dental caries etiology in Papua New Guinea / - 199 pages: illustration ; 30 cm. - WHO offset publication ; no. 40 .
9241700404
Dental caries - Etiology - Papua New Guinea
Papua New Guinea
WHO study of dental caries etiology in Papua New Guinea / - 199 pages: illustration ; 30 cm. - WHO offset publication ; no. 40 .
9241700404
Dental caries - Etiology - Papua New Guinea
Papua New Guinea