What model should drug retail or health consultation from pharmacies or hospitals to ordinary consumers belong to?

Drug retail or health consultation from pharmacies or hospitals to ordinary consumers should belong to B2C mode. B2C mode is a mode of e-commerce, and it is the general name of e-commerce activities carried out by enterprises for individuals. Enterprises provide online medical consultation and online commodity purchase for individuals, usually called commercial retail, and sell products and services directly to consumers. Drug retail or health consultation from pharmacies or hospitals to ordinary consumers belongs to B2C mode, which is referred to as business-to-customer for short.