TY  - RPRT
TI  - Rigidity, chronicity, schizophrenia.
AU  - M BOVERMAN
PY  - 1959
DO  - 10.1001/archpsyc.1959.03590030019001
UR  - https://pubmed.ncbi.nlm.nih.gov/13803414/
ID  - 13803414
ER  -