1 Department of Pulmonary, Allergy, and Critical Care Medicine, Stanford Health Care, 300 Pasteur Drive, Room H3143, Stanford, CA 94305, United States. Electronic address: [email protected].
2 Department of Pulmonary, Allergy, and Critical Care Medicine, Stanford Health Care, 300 Pasteur Drive, Room H3143, Stanford, CA 94305, United States; Department of Emergency Medicine, Stanford Health Care, 900 Welch Road, Suite 350, Stanford, CA 94304, United States.