TY  - RPRT
TI  - Cheek pressure and head posture.
AU  - B Ingervall
AU  - U Thüer
PY  - 1988
DO  - 10.1043/0003-3219(1988)058<0047:cpahp>2.0.co;2
UR  - https://pubmed.ncbi.nlm.nih.gov/3162663/
ID  - 3162663
ER  -