TY  - RPRT
TI  - Getting to GRIP with a problem.
AU  - C Grainger
AU  - E Harries
PY  - 1996
DO  - 10.1136/jech.50.1.108-a
UR  - https://pubmed.ncbi.nlm.nih.gov/8762368/
ID  - 8762368
ER  -