TY  - RPRT
TI  - Human enamel structure studied by high resolution electron microscopy.
AU  - S L Wen
PY  - 1989
DO  - 10.1016/0892-0354(89)90008-7
UR  - https://pubmed.ncbi.nlm.nih.gov/2491337/
ID  - 2491337
ER  -