Canker sores, also known as mouth ulcers, or aphthous stomatitis, can form on the gums, inner cheeks and lips (anywhere inside of the mouth). Canker sores, while annoying, are common, and usually heal in a week or two.
The length of time that doctor's offices need to keep records varies by state. 5 years is a common requirement. Explanations of benefits (EOB's) are sent by the insurance companies to the patient, not to the doctor's office. 4/11/13- Actually, insurance companies send EOB's to both entities, patient and doctors.
The majority of pilots who eject don't suffer any long term effects or paralysis and they can take between six to 12 months to make a full recovery. The Eject System uses a tiny plastic bladder and inflation device, and is easily installed in any helmet. This process accelerates the ions outward in a wind that ejects annually as much material from a black hole as the sun contains.