Accepted for Publication: January 7, 2014.
Published Online: March 3, 2014. doi:10.1001/jamaneurol.2014.17.
Study concept and design: Liew, Darras, Kang.
Acquisition of data: Liew, Shamberger, Weldon, Darras, Kang.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Liew, Powell.
Critical revision of the manuscript for important intellectual content: Liew, Sloan, Shamberger, Weldon, Darras, Kang.
Statistical analysis: Powell, Sloan.
Administrative, technical, and material support: Weldon.
Study supervision: Shamberger, Weldon, Darras, Kang.
Conflict of Interest Disclosures: Dr Darras received funding for travel from Athena Diagnostics. Dr Kang served as an expert witness with the Health Resources and Services Administration of the US Department of Health and Human Services and was an uncompensated member of the medical advisory board of the Massachusetts/New Hampshire Chapter of the Myasthenia Gravis Foundation of America. Dr Kang received an honorarium from the American Academy of Neurology for lectures that included the subject of myasthenia gravis. No other disclosures were reported.
Additional Contributions: We thank the late H. Royden Jones Jr, MD, for his valuable contributions to this study and insights on myasthenia gravis over many years. We thank the nursing staff of the Apheresis Unit and the Center for Ambulatory Treatment and Clinical Research (CAT/CR) at Boston Children’s Hospital for their excellent patient care including Robin Willis, RN, BSN, HP (ASCP); Beverly Gedutis, RN, CPN, HP (ASCP); Cheryl Pacheco, RN, CPN; Jennifer Fortin, MSN, RN, CPN; Lauren Desharnais, BSN, RN, CPN, SNII; and Miriam Gorman, BSN, RN, CPN, SNII.