Both patients suffer various neurological deficits, including peripheral neuropathy, small fiber neuropathy, polyneuropathy, and autonomic dysfunction (cardiac, GI, sudomotor, urinary, and pupillary dysfunction). They have never been given any treatment for such antibodies, and have never received plasmapheresis, acetylcholinesterase inhibitors, immunoglobulin G injections, or immunotherapy. What should the treatment or treatments be in each of these patients?