TY  - RPRT
TI  - Habitual knuckle cracking and hand function.
AU  - P A Simkin
PY  - 1990
DO  - 10.1136/ard.49.11.957-b
UR  - https://pubmed.ncbi.nlm.nih.gov/2256753/
ID  - 2256753
ER  -