TY  - BOOK
AU  - Drummond,Michael
AU  - Mason,James
TI  - Screening for diabetic retinopathy by optometrists: effectivness and cost -effectiveness 
U1  - 338.46 
PY  - 1995///
CY  - York University
PB  - Centre for health economics
KW  - Health economics
KW  - Diabetic retinopathy
KW  - screening
KW  - alternative strategies
ER  -