1. Department of Internal Medicine, Louisiana State University Health Sciences Center Shreveport , 1501 Kings Highway , Shreveport, LA 71103, USA
2. Department of Pathology, Louisiana State University Health Sciences Center Shreveport , 1501 Kings Highway , Shreveport, LA 71103, USA
3. Department of Hematology & Oncology, Feist-Weiller Cancer Center , 1501 Kings Highway , Shreveport, LA 71103, USA