TY  - RPRT
TI  - Disturbances and defects in enamel development.
AU  - J W Simmelink
AU  - V K Nygaard
PY  - 1979
DO  - 10.1177/002203457905800223011
UR  - https://pubmed.ncbi.nlm.nih.gov/283114/
ID  - 283114
ER  -