TY  - RPRT
TI  - NorthMed HMO.
AU  - J Christianson
AU  - S Krein
PY  - 1998
DO  - 10.1111/j.1748-0361.1998.tb00625.x
UR  - https://pubmed.ncbi.nlm.nih.gov/9825614/
ID  - 9825614
ER  -