Hi. I’ve been reading on this about women who have had a BA were given an ID card which holds information about the implant they have. I have chosen a Mentor implant. My surgeon has not mentioned anything about the card. Am I supposed to register with the Mentor site? As a patient, it asks for the serial number to the implants i have in, in order to go forward and apparently this information is on the ID card.. my question is, how important is this card? How important is registering?