TY  - RPRT
TI  - A conceptual approach for scientifically based guidelines.
AU  - P Walter
AU  - D Hornig
AU  - U Moser
PY  - 2001
DO  - 10.1159/000059470
UR  - https://pubmed.ncbi.nlm.nih.gov/11125569/
ID  - 11125569
ER  -