1. Department of Internal Medicine (Adult Clinical Hematology Division), Postgraduate Institute of Medical Education and Research, Chandigarh (Union Territory), India
2. Department of Clinical Hematology and Stem Cell Transplant, Army Hospital (Research & Referral) New Delhi, India
3. Department of Radiotherapy and Oncology, Indira Gandhi Medical College Shimla, Himachal Pradesh, India
4. Department of Internal Medicine, Saint Vincent Hospital, Worcester, MA 01608, USA