TY  - GEN
AU  - Jayasuriya , D.C
AU  - Wijeysinghe , F.D.C
TI  - Essential drugs in Sri Lanka: regulatory and economic aspects
U1  - 615.1 
PY  - 1991///
CY  - Nawala
PB  - Institute of comparative Health Policy and Low
KW  - MEDICINE
KW  - DRUGS
ER  -