E-commerce then and now.
D003132:Commerce / Q000639:trends; D017046:Cost Savings; D004865:Equipment and Supplies, Hospital / Q000191:economics / Q000600:supply & distribution*; D019981:Health Care Sector / Q000639:trends*; D017721:Hospital Costs; D020407:Internet / Q000706:statistics & numerical data*; D008421:Materials Management, Hospital / Q000191:economics* / Q000639:trends; D014481:United States