TY  - RPRT
TI  - Vertical systems integration.
AU  - R P Newhouse
AU  - M E Mills
PY  - 1999
DO  - 10.1097/00005110-199910000-00006
UR  - https://pubmed.ncbi.nlm.nih.gov/10533496/
ID  - 10533496
ER  -