TY  - RPRT
TI  - Shy, withdrawn, or autistic?
AU  - D M Hall
AU  - P Hill
PY  - 1991
DO  - 10.1136/bmj.302.6769.125
UR  - https://pubmed.ncbi.nlm.nih.gov/1995127/
ID  - 1995127
ER  -