TY  - RPRT
TI  - [When do infusion systems have to be changed?].
AU  - K Anding
AU  - G Salrein
AU  - R Mattowitz
AU  - F Daschner
PY  - 1991
UR  - https://pubmed.ncbi.nlm.nih.gov/1762415/
ID  - 1762415
ER  -