 We may not have heard about a rare disease called a myasthenia gravis, but it is a chronic autoantibody condition of the nervous system that affects muscle strength and makes everyday activities challenging. Well, Meredith O'Connor is a patient advocacy specialist and is living with the disease, and she is joining us to tell her story along with a leading expert, Dr. Nicholas Silvestri, and welcome to both of you. Thank you so much.