If there’s an independent pharmacy in your market area with a Leader Pharmacy logo on the storefront — and with more than 3,400 Leader stores nationwide, chances are good that there’s one nearby — don’t be fooled by the store’s modest footprint or the folksy, mom-and-pop image it may project. The store’s owners have an arsenal of sophisticated business tools at their disposal, and the backing of an $87 billion, global health services and wholesaling giant.