1. Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
2. Department of Cardiac Surgery, Spedali Civili di Brescia, 25123 Brescia, Italy
3. Hematology and Medical Oncology, University of Pittsburg Medical Center-Hillman Cancer Center, Altoona, PA 16601, USA
4. Research Medical Library, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
5. Department of Medical Oncology, NCI, Cairo 11796, Egypt
6. Surgical Oncology Department, National Cancer Institute, Cairo 12613, Egypt
7. Cardiothoracic Surgery Department, Weill Cornell Medicine, New York, NY 10065, USA
8. Department of Hematology, Soroka University Medical Center, Beer Sheva 8410501, Israel
9. Faculty of Health Sciences, Ben Gurion University of the Negev, Beer Sheva 8410501, Israel