TY  - RPRT
TI  - Health research for development.
AU  - S B Rifkin
AU  - D Griffith
PY  - 1991
DO  - 10.1016/0140-6736(91)91756-k
UR  - https://pubmed.ncbi.nlm.nih.gov/1673529/
ID  - 1673529
ER  -