Vertical integration up, horizontal flattens.
Jaklevic
M C
MC
D003625:Data Collection; D019033:Delivery of Health Care, Integrated / Q000706:statistics & numerical data / Q000639:trends*; D008389:Marketing of Health Services / Q000706:statistics & numerical data / Q000639:trends*; D009096:Multi-Institutional Systems / Q000639:trends; D014481:United States