Please choose the correct ending to complete the given sentence: Health: [header] How to travel with a pacemaker [title] Ask your doctor if your pacemaker contains any metal. [step] Some versions do not contain metal, and they will not cause any trouble if you choose to travel through airport security screening areas. [title] Ask your doctor for an official card that states you have an implanted pacemaker.

Ending1: [step] A mvd card, one that lets you stay safe during the trip, is one of the company's most common options. [title] Look for an identity card when first traveling through airport security. Ending2: [step] These cards are official, usually produced from the doctor's office or the creator of the pacemaker, and they can warn security officials of hidden metal within the body. [title] Wait an appropriate time after implantation before deciding to travel. Ending3: [step] When you purchase the card, make sure it includes the cost of the procedure, the type of implant you have, and the equipment you will be using. [substeps] Check the website of your doctor to ensure they don't only operate pacemakers online, or refuse to return them to customers. Ending4: [step] Your doctor will give you an official postage statement and will explain where to mail the important documents. Your card needs to be kept in one of four locations: the airport nearest your terminal, parking garage at your hotel, or at your recipient's place of business.

Answer format: ending1/ending2/ending3/ending4