Comparison of bromcresol purple and capillary protein electrophoresis for quantification of serum albumin in multiple myeloma.

Employment or Leadership: None declared. Consultant or Advisory Role: None declared. Stock Ownership: In accordance with the Bayh–Dole Act of 1980 and Mayo Foundation policy, the authors disclose that V.A. Lennon, as inventor, stands to receive royalties for commercial assays to detect aquaporin-4– specific autoantibodies. The intellectual property is licensed to a commercial entity for the development of a simple, antigen-specific assay, to be made available worldwide for patient care. The test will not be exclusive to Mayo Clinic. To date, the inventors have received less than $10 000 in royalties. They do not benefit financially from serological testing performed at Mayo Clinic. Honoraria: None declared. Research Funding: M. Apiwattanakul, government of Thailand; V.A. Lennon, Ralph WilsonMedical Research Foundation and GuthyJackson Charitable Foundation; S.J. Pittock, Guthy-Jackson Charitable Foundation. Expert Testimony: None declared.