1 Department of Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, California. Electronic address: miren.guenechea-sola@cshs.org.
2 Department of Allergy Immunology, West Los Angeles Veterans Affairs Medical Center, Los Angeles, California.
3 Department of Allergy Immunology, West Los Angeles Veterans Affairs Medical Center, Los Angeles, California; George Washington University School of Medicine, Washington, DC.