TY  - RPRT
TI  - Signposts for the next century.
AU  - T Porter-O'Grady
PY  - 1998
DO  - 10.1097/00006247-199812000-00001
UR  - https://pubmed.ncbi.nlm.nih.gov/9987358/
ID  - 9987358
ER  -