https://pubmed.ncbi.nlm.nih.gov/27692161/
https://pubmed.ncbi.nlm.nih.gov/6948055/
https://codental.uobaghdad.edu.iq/wp-content/uploads/sites/14/2021/03/Molybdenum-Level-in-Permanent-Teeth-Enamel-and-Saliva-of-a-Group-of-Adolescents-in-Relation-to-Dental-Caries-and-Gingivitis-and-its-Effect-on-Solubility-Microh.pdf
https://pubmed.ncbi.nlm.nih.gov/4393088/
https://pubmed.ncbi.nlm.nih.gov/29767695/
https://pubmed.ncbi.nlm.nih.gov/25157664/
https://tdl-ir.tdl.org/handle/2346/10595
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