TY  - RPRT
TI  - Down with double projection.
AU  - E Heyderman
AU  - D L Eustace
PY  - 1991
DO  - 10.1016/0140-6736(91)92768-w
UR  - https://pubmed.ncbi.nlm.nih.gov/1720185/
ID  - 1720185
ER  -