@misc{indiciae689b4317fafd, title = {Caries progression and activity in approximal tooth surfaces. A longitudinal study.}, author = {D S Berman and G L Slack}, year = {1973}, doi = {10.1038/sj.bdj.4802958}, url = {https://pubmed.ncbi.nlm.nih.gov/4145948/}, note = {Source identifier: 4145948} }