1. Comprehensive Cancer Centers of Nevada, Las Vegas, NV 89148 USA/The US Oncology Network
2. University of Nevada School of Medicine, Reno, NV 89557 USA
3. University of Nevada Las Vegas, Las Vegas, NV 89102, USA
4. Real World Research, Ontada, Irving, TX 75014, USA
5. Biostatistics & Research Decision Sciences, Merck & Co., Inc., Rahway, NJ 07065, USA
6. Center for Observational & Real-World Evidence (CORE), Merck & Co., Inc., Rahway, NJ 07065, USA
7. Clinical Research, Merck & Co., Inc., Rahway, NJ 07065, USA