For GPOs, e-commerce is all show.
Becker
C
C
D003132:Commerce / Q000458:organization & administration / Q000639:trends; D003625:Data Collection; D004059:Diffusion of Innovation; D017754:Group Purchasing / Q000706:statistics & numerical data*; D020407:Internet / Q000706:statistics & numerical data*; D009935:Organizational Affiliation; D011682:Purchasing, Hospital; D014481:United States