The present invention relates to a novel method for improving the viral safety of liquid Factor VII compositions, in particular those comprising active Factor VII polypeptides. When a customer approaches or enters a merchant’s store the customer has signed up with, the user device carried by the customer wirelessly broadcasts a signal for the customer key unique to the merchant key. 20 mgkgday within 24 or 48 hours following transplantation. Impurities are heavily doped to a drain-to-channel interface in the string selection transistor and a channel-to-source interface in the ground selection transistor, forming pockets for preventing punchthrough.