HMO growth and hospital expenses: a correction.
Zellner
B B
BB
Center for Policy Studies, Minneapolis, MN 55414.
Wolfe
B L
BL
D006279:Health Maintenance Organizations / Q000191:economics*; D006760:Hospitalization / Q000191:economics*; D015233:Models, Statistical; D012044:Regression Analysis; D014481:United States