1. Stanford University, 6429, Department of Medicine, Division of Pulmonary and Critical Care, Stanford, California, United States
2. Partnership for Health Analytic Research, LLC, Beverly Hills, California, United States
3. Palo Alto Outcomes Research, Palo Alto, California, United States
4. Genentech Inc, 7412, South San Francisco, California, United States;
5. Genentech Inc, 7412, South San Francisco, California, United States