1. Department of Medical Oncology, Lung Center of The Philippines, Quezon City, Metro Manila 1100, Philippines
2. Department of Internal Medicine, Section of Medical Oncology, National Kidney and Transplant Institute, Quezon City, Metro Manila 1101, Philippines
3. Department of Internal Medicine, Section of Oncology, East Avenue Medical Center, Quezon City, Metro Manila 1100, Philippines
4. Department of Pathology and Laboratory Medicine, Lung Center of The Philippines, Quezon City, Metro Manila 1100, Philippines
5. Clinical Proteomics for Cancer Initiative, Department of Science and Technology-Philippine Council for Health Research and Development, Taguig, Metro Manila 1631, Philippines