TY  - BOOK
AU  - U. Bergman
AU  -  A. Grimsson A.H.W Wahba  B. Westerholm
TI  - Studies in drug utilization : Methods and applications
SN  - 92-9020-108-8
U1  - 615.7 
PY  - 1979///
CY  - Geneva
PB  - World Health Organization
ER  -