TY  - GEN
AU  - Hjortsberg V.
ED  - World Health Organization. Quality Assurance and Safety: Medicines.
TI  - WHO Collaborating Centre for Chemical Reference Substances : report on the work in 2000
PY  - 2001///
CY  - Geneva : 
PB  - World Health Organization
KW  - Reference standards
KW  - Pharmaceutical preparations
KW  - Standards
ER  -