TY  - RPRT
TI  - CLASSIFICATION OF DEVELOPMENTAL DEFECTS.
AU  - C C CHAPPLE
PY  - 1965
DO  - 10.1016/s0140-6736(65)91705-8
UR  - https://pubmed.ncbi.nlm.nih.gov/14234196/
ID  - 14234196
ER  -