1 Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. Electronic address: deee1@mskcc.org.
2 Department of Medicine, Einstein Medical Center, Philadelphia, PA, USA; University of the Philippines College of Medicine, Manila, Philippines.
3 Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
4 Development Studies Program, Ateneo de Manila University, Quezon City, Philippines; Department of Anthropology, University of the Philippines Diliman, Quezon City, Philippines.