TY  - RPRT
TI  - When should clinical guidelines be updated?
AU  - P Shekelle
AU  - M P Eccles
AU  - J M Grimshaw
AU  - S H Woolf
PY  - 2001
DO  - 10.1136/bmj.323.7305.155
UR  - https://pubmed.ncbi.nlm.nih.gov/11463690/
ID  - 11463690
ER  -