TY  - RPRT
TI  - THE CLASSIFICATION OF DEVELOPMENTAL DEFECTS.
AU  - W W PARK
PY  - 1964
DO  - 10.1016/s0140-6736(64)90643-9
UR  - https://pubmed.ncbi.nlm.nih.gov/14172366/
ID  - 14172366
ER  -