(Aloha, OR)  --  Authorities say a medical emergency led the driver of a van to crash into a store in Aloha and pin a woman inside.  Authorities say the elderly driver was in a bank drive-thru when he suddenly accelerated in reverse, hit a parked truck, then drove completely inside the auto-parts store on Southwest 185th Avenue.  A female employee was pinned by the van and was taken to a hospital, but is expected to be fine.  The driver suffered non-life-threatening injuries.