DR. BELKIN CONSULTING: ONE STEP MORE

To give you the most precise advice possible so you will get only the best Vacuum Bell size to treat your Pectus, Dr. Belkin may ask for a further confirmation step:

You will have to print one or more Vacuum Bell perimeters, cut them off, attach them to the body with scotch tape and, after verifying that the dimensions are correct, take a photo as it's shown in the photo below. 

Thank you very much!